12 Days of Christmas
431
99 Bottles of Beer
467
Abundant Numbers
630571
Abundant Numbers (Long)
631
Arithmetic Numbers
505
ASCII Table
743
Catalan Numbers
191
Catalan’s Constant
63
Christmas Trees
760
Collatz
733663
CSS Colors
951
Cubes
452
Day of Week
1,000
Diamonds
396
Divisors
603811
Emirp Numbers
242
Emojify
272
Evil Numbers
404
Evil Numbers (Long)
450
Farey Sequence
475
Fibonacci
835932
Fizz Buzz
979846434
Foo Fizz Buzz Bar
898712
Fractions
432
Happy Numbers
304
Happy Numbers (Long)
404
Intersection
369
Kolakoski Constant
65
Kolakoski Sequence
18
Leap Years
972
Leyland Numbers
451
Look and Say
457
Lucky Numbers
475
Morse Decoder
273
Niven Numbers
677
Niven Numbers (Long)
897
Number Spiral
294
Odious Numbers
399
Odious Numbers (Long)
448
Ordinal Numbers
622
Pangram Grep
582
Pascal’s Triangle
560
Pernicious Numbers
211
Prime Numbers
592
Prime Numbers (Long)
312
Quine
940
Recamán
465
Rijndael S-box
106
Rock-paper-scissors-Spock-lizard
418
Roman to Arabic
398
Seven Segment
232
Sierpiński Triangle
251
Sudoku
230
Tongue-twisters
362
United States
27886
Vampire Numbers
79
π
47
τ
50