The Calendar hole will go live in approximately 6 days. Why not try and solve it ahead of time?

cduerm

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14 / 123 Holes

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1 / 62 Langs

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9 / 99 Cheevos

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24 Apr 2020

Catalan Numbers

12^th

Christmas Trees

25^th

Collatz

21^st

Diamonds

12^th

Evil Numbers

37^th

Fibonacci

1^st

Fizz Buzz

98^th

Leap Years

24^th

Levenshtein Distance

18^th

Pascal’s Triangle

28^th

Sierpiński Triangle

28^th

17^th

√2

25^th

𝑒

17^th