12 Days of Christmas
887
99 Bottles of Beer
772
Abundant Numbers
630594
Abundant Numbers (Long)
631
Arithmetic Numbers
533
ASCII Table
792
Catalan Numbers
191
Catalan’s Constant
63
Christmas Trees
760
Collatz
734733
CSS Colors
951
Cubes
555
Day of Week
1,000
Diamonds
396
Divisors
603872
Emirp Numbers
390
Emojify
271
Evil Numbers
404
Evil Numbers (Long)
450
Farey Sequence
475
Fibonacci
835932
Fizz Buzz
979926434
Foo Fizz Buzz Bar
903895
Fractions
430
Happy Numbers
458
Happy Numbers (Long)
404
Intersection
396
Kolakoski Constant
70
Kolakoski Sequence
18
Leap Years
975
Leyland Numbers
451
Look and Say
457
Lucky Numbers
467
Morse Decoder
350
Niven Numbers
677
Niven Numbers (Long)
898
Number Spiral
338
Odious Numbers
399
Odious Numbers (Long)
448
Ordinal Numbers
623
Pangram Grep
582
Pascal’s Triangle
560
Pernicious Numbers
211
Prime Numbers
592
Prime Numbers (Long)
313
Quine
941
Recamán
466
Rijndael S-box
144
Rock-paper-scissors-Spock-lizard
525
Roman to Arabic
413
Seven Segment
250
Sierpiński Triangle
238
Sudoku
273
Tongue-twisters
625
United States
291116
Vampire Numbers
109
π
47
τ
50