12 Days of Christmas
415
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
734663
CSS Colors
951
Cubes
453
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
899712
Fractions
430
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
467
Morse Decoder
272
Niven Numbers
677
Niven Numbers (Long)
898
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)
313
Quine
941
Recamán
466
Rijndael S-box
106
Rock-paper-scissors-Spock-lizard
418
Roman to Arabic
398
Seven Segment
232
Sierpiński Triangle
251
Sudoku
175
Tongue-twisters
361
United States
27886
Vampire Numbers
79
π
47
τ
50