12 Days of Christmas
339
99 Bottles of Beer
368
Abundant Numbers
688
Abundant Numbers (Long)
754
Arabic to Roman
208
Arithmetic Numbers
609
Arrows
403
Catalan Numbers
690
Christmas Trees
515
Collatz
680
Diamonds
298
Divisors
709
Emirp Numbers
450
Emirp Numbers (Long)
514
Evil Numbers
727
Evil Numbers (Long)
713
Fibonacci
789
Fizz Buzz
559
Foo Fizz Buzz Bar
458
Fractions
426
Happy Numbers
471
Intersection
579
Leap Years
641
Leyland Numbers
575
Lucky Numbers
435
Morse Encoder
144
Niven Numbers
696
Niven Numbers (Long)
761
Odious Numbers
739
Odious Numbers (Long)
737
Ordinal Numbers
456
Pangram Grep
571
Pascal’s Triangle
356
Pernicious Numbers
662
Prime Numbers
622
Prime Numbers (Long)
578
Recamán
648
Rijndael S-box
112
Roman to Arabic
215
Seven Segment
268
Sierpiński Triangle
129
Smith Numbers
533
Sudoku
191
Ten-pin Bowling
163
Tongue-twisters
343
United States
116
Vampire Numbers
419
Van Eck Sequence
631
√2
630