12 Days of Christmas
431
99 Bottles of Beer
467
Abundant Numbers
630571
Abundant Numbers (Long)
724
Arithmetic Numbers
504
ASCII Table
742
Catalan Numbers
191
Catalan’s Constant
63
Christmas Trees
761
Collatz
733663
CSS Colors
951
Cubes
458
Day of Week
1,000
Diamonds
396
Divisors
603811
Emirp Numbers
243
Emojify
272
Evil Numbers
404
Evil Numbers (Long)
451
Farey Sequence
474
Fibonacci
835932
Fizz Buzz
981847435
Foo Fizz Buzz Bar
906714
Fractions
432
Happy Numbers
304
Happy Numbers (Long)
403
Intersection
368
Kolakoski Constant
67
Kolakoski Sequence
18
Leap Years
972
Leyland Numbers
451
Look and Say
464
Lucky Numbers
478
Morse Decoder
275
Niven Numbers
676
Niven Numbers (Long)
896
Number Spiral
294
Odious Numbers
399
Odious Numbers (Long)
448
Ordinal Numbers
637
Pangram Grep
581
Pascal’s Triangle
559
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
403
Seven Segment
232
Sierpiński Triangle
252
Sudoku
173
Tongue-twisters
363
United States
27886
Vampire Numbers
80
π
50
τ
49