12 Days of Christmas
411
99 Bottles of Beer
467
Abundant Numbers
630571
Abundant Numbers (Long)
631
Arithmetic Numbers
478
ASCII Table
743
Catalan Numbers
191
Catalan’s Constant
63
Christmas Trees
761
Collatz
734640
CSS Colors
951
Cubes
452
Day of Week
1,000
Diamonds
396
Divisors
603811
Emirp Numbers
242
Emojify
272
Evil Numbers
404
Evil Numbers (Long)
421
Farey Sequence
476
Fibonacci
835933
Fizz Buzz
979846427
Foo Fizz Buzz Bar
899712
Fractions
430
Happy Numbers
304
Happy Numbers (Long)
404
Intersection
369
Kolakoski Constant
65
Kolakoski Sequence
18
Leap Years
972
Leyland Numbers
452
Look and Say
458
Lucky Numbers
467
Morse Decoder
271
Niven Numbers
677
Niven Numbers (Long)
899
Number Spiral
291
Odious Numbers
399
Odious Numbers (Long)
449
Ordinal Numbers
622
Pangram Grep
582
Pascal’s Triangle
561
Pernicious Numbers
211
Prime Numbers
592
Prime Numbers (Long)
313
Quine
942
Recamán
466
Rijndael S-box
106
Rock-paper-scissors-Spock-lizard
416
Roman to Arabic
398
Seven Segment
232
Sierpiński Triangle
251
Sudoku
174
Tongue-twisters
360
United States
27686
Vampire Numbers
65
π
47
τ
50