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Rule (lemmy.dbzer0.com)

submitted 8 months ago by [email protected] to c/[email protected]

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[–] [email protected] 4 points 8 months ago (3 children)

What's 196, anyway?

[–] [email protected] 7 points 8 months ago (1 children)

196 is a square number, the square of 14. As the square of a Catalan number, it counts the number of walks of length 8 in the positive quadrant of the integer grid that start and end at the origin, moving diagonally at each step. It is part of a sequence of square numbers beginning 0, 1, 4, 25, 196, ... in which each number is the smallest square that differs from the previous number by a triangular number.

[–] [email protected] 3 points 8 months ago

196 is a square number, the square of 14.

you can stop there, that's the average age of the users here

[–] [email protected] 4 points 8 months ago

The original sub was r/195, as it was started by roommates whose room number was 195. Then later for whatever reason appeared the spinoff r/196 and got more popular than the original.

Like I'm 80% sure that this is how it happened and that it's not semi-made-up by myself because I misremember the story...

[–] [email protected] 2 points 8 months ago

It is the rule