12 Days of Christmas
437
99 Bottles of Beer
486
Abundant Numbers
640
573
Abundant Numbers (Long)
740
Arithmetic Numbers
520
ASCII Table
742
Catalan Numbers
194
Catalan’s Constant
63
Christmas Trees
772
Collatz
786
664
CSS Colors
950
Cubes
450
Day of Week
1,000
Diamonds
404
Divisors
621
831
Emirp Numbers
247
Emojify
277
Evil Numbers
407
Evil Numbers (Long)
457
Farey Sequence
474
Fibonacci
843
934
Fizz Buzz
986
848
464
Foo Fizz Buzz Bar
906
714
Fractions
431
Happy Numbers
310
Happy Numbers (Long)
427
Intersection
385
Kolakoski Constant
68
Kolakoski Sequence
18
Leap Years
984
Leyland Numbers
461
Look and Say
475
Lucky Numbers
505
Morse Decoder
298
Niven Numbers
694
Niven Numbers (Long)
926
Number Spiral
301
Odious Numbers
405
Odious Numbers (Long)
457
Ordinal Numbers
636
Pangram Grep
597
Pascal’s Triangle
568
Pernicious Numbers
216
Prime Numbers
594
Prime Numbers (Long)
315
Quine
949
Recamán
478
Rijndael S-box
130
Rock-paper-scissors-Spock-lizard
424
Roman to Arabic
410
Seven Segment
248
Sierpiński Triangle
259
Sudoku
182
Tongue-twisters
369
United States
292
92
Vampire Numbers
86
π
50
τ
50