12 Days of Christmas
683
Abundant Numbers
595
688
Abundant Numbers (Long)
612
692
Arabic to Roman
344
Arithmetic Numbers
633
685
Billiards
573
Christmas Trees
597
Collatz
684
787
Continued Fractions
470
529
Cubes
353
Diamonds
481
Divisors
646
706
Evil Numbers
616
Evil Numbers (Long)
511
600
Fibonacci
723911850587785846
Fizz Buzz
532
614
Fractions
678
Happy Numbers
521
Inventory Sequence
521
Leap Years
755717
800
785757
Niven Numbers
577
670
Niven Numbers (Long)
560
652
Number Spiral
405
Odious Numbers
527
615
Odious Numbers (Long)
623
Pascal’s Triangle
537
Pernicious Numbers
368
Prime Numbers
543
636
Prime Numbers (Long)
603
Quine
442
Roman to Arabic
264
ROT13
346
Seven Segment
329
Sierpiński Triangle
292
Smith Numbers
416
484
Tongue-twisters
509
525
Tower of Hanoi
487
549
Trinomial Triangle
291
378