12 Days of Christmas
396
Abundant Numbers
495648
Abundant Numbers (Long)
537658
Arithmetic Numbers
698
Catalan Numbers
677
Christmas Trees
504
Collatz
714
Divisors
824
Emirp Numbers
396
Emirp Numbers (Long)
451
Evil Numbers
817
Evil Numbers (Long)
798
Farey Sequence
590
Fibonacci
932
Fizz Buzz
861
Foo Fizz Buzz Bar
555722
Happy Numbers
350
Happy Numbers (Long)
436
Inventory Sequence
619
Kolakoski Constant
57
Kolakoski Sequence
329
Leap Years
845
Look and Say
514
Lucky Numbers
418
Niven Numbers
535933
Niven Numbers (Long)
653
Odious Numbers
781
Odious Numbers (Long)
763
Ordinal Numbers
459
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
339338
Van Eck Sequence
594