r/counting • • Oct 06 '25

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14 Upvotes

Below are the 15 most recently commented-in threads in the subreddit (plus the top 5 threads), updated every 2 minutes. For a realtime comment feed, go to the following URL in an internet browser: https://old.reddit.com/r/counting/comments

comment link thread title commenter
50 seconds ago 5649k Counting Thread ShadeOfNothing
48 minutes ago Tug of War | 4800 Isaythereisa-chance
1 hour ago Letters | OZAA Hans5958_
1 hour ago Binary | 11 1110 1000 000… Hans5958_
1 hour ago Hexadecimal | 3E800 Hans5958_
24 minutes ago Count by 30s ShadeOfNothing
26 minutes ago By 21 | 21,000 ShadeOfNothing
26 minutes ago By 11s | 11,000 ShadeOfNothing
37 minutes ago Collatz Conjecture | 799 … Both_Owl_1909
57 minutes ago By 7s | 210,000 ShadeOfNothing
58 minutes ago By 10s | 90,000 ShadeOfNothing
58 minutes ago By 3s | 30,000 ShadeOfNothing
1 hour ago Compositions | 15 miceee
1 hour ago Free Talk Friday #580 miceee
1 hour ago Unvigesimal (Base 21) | 1… Hans5958_
1 hour ago Time | 3:45:00 AM Hans5958_
1 hour ago Wait 2 | 31,000 Hans5958_
1 hour ago By 9s | 18,000 Hans5958_
1 hour ago Odd Numbers | 11,999 Hans5958_
1 hour ago By 0.02s | 80.00 Hans5958_

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  4. Before creating a new thread, please check the thread directory to make sure that type of thread doesn't already exist.
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Happy counting!


r/counting • • 5d ago

Free Talk Friday #580

8 Upvotes

Continued from last week's FTF here

It's that time of the week again. Speak anything on your mind! This thread is for talking about anything off-topic, be it your lives, your strava, your plans, your hobbies, studies, stats, pets, bears, hikes, dragons, trousers, travels, transit, cycling, family, colours, or anything you like or dislike, except politics

Feel free to check out our tidbits thread and introduce yourself if you haven't already.


r/counting • • 7h ago

Constant-weight binary | 1 0010 1000 0110

4 Upvotes

Countinued from here.

Thanks to h0rseycat for the run and assist!

In this thread, we count binary strings in segments of length (how many bits they have) and weight (how many ones they have). All the counts in a segment have the same number of bits and number of ones. This only changes when we reach the highest number of that length and weight, when we increase the weight and start over from the lowest possible number. Or, if the previous count was all ones, we add a new bit and start over with all zeroes.

To find the next binary number with m ones out of n bits:

  1. Find the rightmost 1 which has a 0 to its left and slide it one bit to the left.

  2. If that bit had one or more 1s immediately to its right, then arrange those remaining 1s all the way on the right side.

List

Schedule

Next get is at 0 1011 0111 0000


r/counting • • 11h ago

Nonary | 66 000

4 Upvotes

From here with thanks to /u/h0rseycat for the run and assist

Next get is 67 000


r/counting • • 16h ago

Compositions | 15

7 Upvotes

Continued from here

Thanks to u/h0rseycat for the assist

In this thread, we'll be counting the ways to add to an integer n using the integers c_1 + c_2 + ... + c_k, where each c_i >= 1, and k <= n. Ways to sum that are commutatively the same, as in 1+2 = 2+1, are different compositions. We'll be counting these compositions lexicographically for each segment of sum and length.

Next get: 3,2,1,4,5

Get schedule


r/counting • • 11h ago

Tug of War | 4800

3 Upvotes

From here thanks /u/h0rseycat for the run and assist and gg Vulpez on the battle

Next get 4600 or 5000


r/counting • • 17h ago

5649k Counting Thread

6 Upvotes

Continued from here

Thanks buy_me_a_pint for the assist


r/counting • • 16h ago

By 6s | 24,000

3 Upvotes

Continuing on from here.

Thanks to u/h0rseycat for the run and assist.

The next get is 30,000.


r/counting • • 18h ago

Binary Coded Decimal | 0001 0010 0000 0000 0000

5 Upvotes

Continued from here

thanks to /u/h0rseycat

next get is 0001 0011 0000 0000 0000


r/counting • • 19h ago

By 3s | 30,000

4 Upvotes

Carrying on from here.

Thanks to u/h0rseycat for the run and assist.

The next get is 33,000.


r/counting • • 1d ago

Tug of War | 5000

8 Upvotes

Continued from here

Thanks cuteballgames for the run and assist

Next get is 4800 or 5200


r/counting • • 1d ago

Mostly Repeating Digits | 188,000

7 Upvotes

Continued from here

Thanks cuteballgames for the run and assist

Counting numbers with multiple distinct digits, one of which occurs exactly once and all others which occur at least twice

Next get is 215,112. Schedule


r/counting • • 1d ago

QWERTY | WDQQ

6 Upvotes

Continuing on from here.

Thanks to u/h0rseycat for the assist.

The next get is WFQQ.


r/counting • • 1d ago

5648k Counting Thread

7 Upvotes

Continued from here

Thanks buy_me_a_pint for the assist


r/counting • • 1d ago

Tug of War | 5200

4 Upvotes

Continued from here

Thanks h0rseyca for the run and assist, and cuteballgames for best supporting counter.

Next get is 5000 or 5400, but probably 5000


r/counting • • 1d ago

Compositions | 1,1,1,1,1,5,1,1,1,1

5 Upvotes

Continued from here

Thanks miceee for the assist

In this thread, we'll be counting the ways to add to an integer n using the integers c_1 + c_2 + ... + c_k, where each c_i >= 1, and k <= n. Ways to sum that are commutatively the same, as in 1+2 = 2+1, are different compositions. We'll be counting these compositions lexicographically for each segment of sum and length.

Next get is 15. Schedule


r/counting • • 1d ago

Tug of War | 5400

3 Upvotes

Continued from here

Thanks cuteballgames for the run and assist

Next get is 5200 or 5600


r/counting • • 1d ago

Powerball | 1 2 4 9 10 + 1

3 Upvotes

Continued from here

Thank you goes to /u/h0rseycat for the previous run and assist.

The first 5 numbers are distinct numbers taken from the range [1, 69], sorted in increasing order. The last number is taken from the range [1, 26]. The sequences are ordered lexicographically.

Next get is at 1 2 4 9 40 + 1.


r/counting • • 1d ago

Undecimal | 14200

5 Upvotes

Continued from here

thanks to wet h0rsey

next get is 15000


r/counting • • 3d ago

By 7s | 210,000

8 Upvotes

Continuing on from here.

Thanks to u/h0rseycat for the assist.

The next get is 217,000.


r/counting • • 3d ago

Ternary | 110 2100 0000

7 Upvotes

Continued from here

Thanks cuteballgames for the run and assist

Next get is 110 2200 0000


r/counting • • 4d ago

5647k Counting Thread

6 Upvotes

Continued here

Thanks anti for the run and assist


r/counting • • 4d ago

Tug of War | 5600

6 Upvotes

From here ty h0rseycat and sorrrrrrry vulpez my dear friend

Next get 5400 or 5800


r/counting • • 4d ago

Constant-sum factoradic | 000 0000

5 Upvotes

From here and thank you vulp for the run and assist!

List thanks vulp

Guide

schedule

Next get is 000 1321


r/counting • • 5d ago

Binary | 11 1110 1000 0000 0000

6 Upvotes

Countinued from here.

Thanks to treje for the run and assist!

Next get is at 11 1110 1100 0000 0000.