12 Days of Christmas
431
99 Bottles of Beer
467
Abundant Numbers
640574
Abundant Numbers (Long)
741
Arithmetic Numbers
516
ASCII Table
743
Catalan Numbers
195
Catalan’s Constant
63
Christmas Trees
772
Collatz
743665
CSS Colors
960
Cubes
457
Day of Week
1,000
Diamonds
404
Divisors
622831
Emirp Numbers
248
Emojify
277
Evil Numbers
407
Evil Numbers (Long)
458
Farey Sequence
473
Fibonacci
844935
Fizz Buzz
986848458
Foo Fizz Buzz Bar
908715
Fractions
431
Happy Numbers
310
Happy Numbers (Long)
412
Intersection
390
Kolakoski Constant
68
Kolakoski Sequence
18
Leap Years
984
Leyland Numbers
462
Look and Say
475
Lucky Numbers
489
Morse Decoder
292
Niven Numbers
694
Niven Numbers (Long)
927
Number Spiral
298
Odious Numbers
405
Odious Numbers (Long)
458
Ordinal Numbers
637
Pangram Grep
597
Pascal’s Triangle
568
Pernicious Numbers
216
Prime Numbers
594
Prime Numbers (Long)
316
Quine
933
Recamán
479
Rijndael S-box
107
Rock-paper-scissors-Spock-lizard
419
Roman to Arabic
411
Seven Segment
237
Sierpiński Triangle
259
Sudoku
180
Tongue-twisters
362
United States
29286
Vampire Numbers
81
π
50
τ
50