Abundant Numbers
554
634
Abundant Numbers (Long)
598
664
Arabic to Roman
344
Arithmetic Numbers
622
683
Billiards
567
Christmas Trees
592
Collatz
670
782
Cubes
338
Diamonds
477
Divisors
645
687
Evil Numbers
597
Evil Numbers (Long)
599
Fibonacci
706910849783807
Fizz Buzz
531
612
Fractions
656
Happy Numbers
415
Inventory Sequence
519
Leap Years
766716
798782756
Niven Numbers
573
666
Niven Numbers (Long)
565
641
Number Spiral
403
Odious Numbers
536
605
Odious Numbers (Long)
621
Pascal’s Triangle
536
Pernicious Numbers
367
Prime Numbers
609
Prime Numbers (Long)
594
Quine
424
Roman to Arabic
257
ROT13
334
Seven Segment
322
Sierpiński Triangle
280
Smith Numbers
411
498
Tongue-twisters
354
372
Trinomial Triangle
288
410