12 Days of Christmas
171
24 Game
28
99 Bottles of Beer
649
Abundant Numbers
288
Abundant Numbers (Long)
328
Arabic to Roman
558
Arithmetic Numbers
406
Arrows
282
ASCII Table
278
Catalan Numbers
323
Christmas Trees
645
Collatz
770
CSS Colors
944
Day of Week
1,000
Divisors
640
Emojify
369
Evil Numbers
439
Evil Numbers (Long)
500
Fibonacci
614
Fizz Buzz
824
Foo Fizz Buzz Bar
911
Happy Numbers
394
ISBN
541
Kolakoski Sequence
19
Leap Years
605
Leyland Numbers
741
Look and Say
420
Lucky Numbers
11
Niven Numbers
368
Number Spiral
298
Odious Numbers
407
Odious Numbers (Long)
467
Ordinal Numbers
403
Pangram Grep
617
Pascal’s Triangle
645
Pernicious Numbers
210
Recamán
500
Reverse Polish Notation
264
Rijndael S-box
186
Roman to Arabic
448
Rule 110
4
Spelling Numbers
546
Tongue-twisters
590
United States
186