12 Days of Christmas
191
Abundant Numbers
756
790
Abundant Numbers (Long)
771
Arabic to Roman
468
917Arithmetic Numbers
835
Ascending Primes
1,000Collatz
765
895
Diamonds
272
Divisors
833
765
Emirp Numbers
613
799Emirp Numbers (Long)
664
Evil Numbers
614
976
Evil Numbers (Long)
600
976
Fizz Buzz
682
Kolakoski Sequence
586
675
Leap Years
831
ln 2
153
157
275Niven Numbers
891
Niven Numbers (Long)
768
726
Odious Numbers
638
976
Odious Numbers (Long)
976
Prime Numbers
765
724
Prime Numbers (Long)
743
765
Van Eck Sequence
831
λ
458
618