12 Days of Christmas
396
Abundant Numbers
495648
Abundant Numbers (Long)
537658
Arithmetic Numbers
698
Catalan Numbers
677
Christmas Trees
503
Collatz
714
Divisors
824
Emirp Numbers
396
Emirp Numbers (Long)
451
Evil Numbers
817
Evil Numbers (Long)
797
Farey Sequence
591
Fibonacci
932
Fizz Buzz
860
Foo Fizz Buzz Bar
553720
Happy Numbers
350
Happy Numbers (Long)
436
Inventory Sequence
619
Kolakoski Constant
57
Kolakoski Sequence
328
Leap Years
845
Look and Say
515
Lucky Numbers
417
Niven Numbers
535933
Niven Numbers (Long)
653
Odious Numbers
781
Odious Numbers (Long)
763
Ordinal Numbers
458
Pangram Grep
635
Pascal’s Triangle
666
Pernicious Numbers
437
Pernicious Numbers (Long)
533
Prime Numbers
891
Prime Numbers (Long)
950
Recamán
684
Sierpiński Triangle
529
Tongue-twisters
336338
Van Eck Sequence
594