12 Days of Christmas
884
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
761
Collatz
734733
CSS Colors
951
Cubes
555
Day of Week
1,000
Diamonds
396
Divisors
603857
Emirp Numbers
390
Emojify
271
Evil Numbers
404
Evil Numbers (Long)
421
Farey Sequence
476
Fibonacci
835933
Fizz Buzz
979926427
Foo Fizz Buzz Bar
903895
Fractions
430
Happy Numbers
458
Happy Numbers (Long)
404
Intersection
396
Kolakoski Constant
69
Kolakoski Sequence
18
Leap Years
975
Leyland Numbers
452
Look and Say
458
Lucky Numbers
467
Morse Decoder
350
Niven Numbers
677
Niven Numbers (Long)
899
Number Spiral
335
Odious Numbers
399
Odious Numbers (Long)
449
Ordinal Numbers
623
Pangram Grep
582
Pascal’s Triangle
561
Pernicious Numbers
211
Prime Numbers
592
Prime Numbers (Long)
313
Quine
942
Recamán
466
Rijndael S-box
144
Rock-paper-scissors-Spock-lizard
524
Roman to Arabic
413
Seven Segment
250
Sierpiński Triangle
238
Sudoku
271
Tongue-twisters
625
United States
291116
Vampire Numbers
90
π
47
τ
50