12 Days of Christmas
443
99 Bottles of Beer
496
Abundant Numbers
667583
Abundant Numbers (Long)
789
Arithmetic Numbers
566
ASCII Table
783
Catalan Numbers
205
Catalan’s Constant
68
Christmas Trees
803
Collatz
833679
CSS Colors
971
Cubes
470
Day of Week
1,000
Diamonds
424
Divisors
640844
Emirp Numbers
255
Emojify
289
Evil Numbers
424
Evil Numbers (Long)
483
Farey Sequence
506
Fibonacci
871947
Fizz Buzz
1,000855489
Foo Fizz Buzz Bar
944725
Fractions
469
Happy Numbers
321
Happy Numbers (Long)
458
Intersection
426
Kolakoski Constant
73
Kolakoski Sequence
19
Leap Years
1,000
Leyland Numbers
492
Look and Say
504
Lucky Numbers
544
Morse Decoder
313
Niven Numbers
718
Niven Numbers (Long)
974
Number Spiral
331
Odious Numbers
421
Odious Numbers (Long)
483
Ordinal Numbers
675
Pangram Grep
627
Pascal’s Triangle
606
Pernicious Numbers
222
Prime Numbers
622
Prime Numbers (Long)
337
Quine
1,000
Recamán
500
Rijndael S-box
137
Rock-paper-scissors-Spock-lizard
442
Roman to Arabic
437
Seven Segment
265
Sierpiński Triangle
270
Sudoku
193
Tongue-twisters
376
United States
30794
Vampire Numbers
93
π
53
τ
53