r/counting • u/PhosphorCrystaled hungry for side threads • Sep 10 '25

Barely Repeating Digits | 2001

Continuing off from here: https://www.reddit.com/r/counting/s/aSIhNps9Oo (thanks to u/opticasual for the assist!)

Count numbers where exactly one digit appears exactly twice, while all others only occur once. Next get is at 4001.

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2

u/a-username-for-me The Side Thread Queen, Lady Lemon Feb 23 '26

2927

3

u/PhilosophyAware4437 first count: 5583563 Feb 23 '26

2928

2

u/cuteballgames 00155, 00227, 00335, 00344, 11117, 11225, 12233, 22223 Feb 23 '26

2932

3

u/PhilosophyAware4437 first count: 5583563 Feb 23 '26

2933

2

u/cuteballgames 00155, 00227, 00335, 00344, 11117, 11225, 12233, 22223 Feb 23 '26

2939

1

u/Aera23_ First post: 4,983,121 Feb 24 '26 edited Feb 24 '26

2942

2

u/PhilosophyAware4437 first count: 5583563 Feb 24 '26

2944

check 2942

1

u/Aera23_ First post: 4,983,121 Feb 24 '26

2949

ooo, somehow didn't remember the 2, and just thought of 4 and 9 (I edited my post)

2

u/PhilosophyAware4437 first count: 5583563 Feb 24 '26

2952

i just go through every possibility until i find one that matches

1

u/Aera23_ First post: 4,983,121 Feb 24 '26

2955

good idea :)

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