12 Days of Christmas
823
99 Bottles of Beer
611
Abundant Numbers
500
Christmas Trees
742
Cubes
470
Diamonds
309
Divisors
542
Emirp Numbers
437
Evil Numbers
362
Fibonacci
771
Fizz Buzz
778
Happy Numbers
491
Leap Years
542
Morse Decoder
352
Morse Encoder
381
Niven Numbers
311
Odious Numbers
333
Ordinal Numbers
571
Pangram Grep
407
Pascal’s Triangle
435
Pernicious Numbers
262
Prime Numbers
400
Rule 110
4
Seven Segment
514
Sierpiński Triangle
89
United States
λ
184
π
53
τ
53
φ
47
√2
49
𝑒
40