12 Days of Christmas
931
99 Bottles of Beer
778
Abundant Numbers
646598
Abundant Numbers (Long)
749
Arithmetic Numbers
557
ASCII Table
816
Catalan Numbers
195
Catalan’s Constant
65
Christmas Trees
779
Collatz
750793
CSS Colors
960
Cubes
570
Day of Week
1,000
Diamonds
410
Divisors
622877
Emirp Numbers
395
Emojify
281
Evil Numbers
407
Evil Numbers (Long)
458
Farey Sequence
475
Fibonacci
843935
Fizz Buzz
994929470
Foo Fizz Buzz Bar
972900
Fractions
431
Happy Numbers
467
Happy Numbers (Long)
415
Intersection
413
Kolakoski Constant
73
Kolakoski Sequence
18
Leap Years
987
Leyland Numbers
463
Look and Say
475
Lucky Numbers
489
Morse Decoder
359
Niven Numbers
703
Niven Numbers (Long)
935
Number Spiral
341
Odious Numbers
405
Odious Numbers (Long)
458
Ordinal Numbers
644
Pangram Grep
600
Pascal’s Triangle
568
Pernicious Numbers
216
Prime Numbers
594
Prime Numbers (Long)
316
Quine
933
Recamán
481
Rijndael S-box
143
Rock-paper-scissors-Spock-lizard
540
Roman to Arabic
428
Seven Segment
264
Sierpiński Triangle
246
Sudoku
282
Tongue-twisters
625
United States
298118
Vampire Numbers
112
π
50
τ
50