Abundant Numbers
761
Abundant Numbers (Long)
902
ASCII Table
721
Catalan Numbers
839
Christmas Trees
709
Collatz
876
Divisors
984
Emirp Numbers
757
Emirp Numbers (Long)
681
Evil Numbers
853
Evil Numbers (Long)
832
Fibonacci
934
Fizz Buzz
977
Foo Fizz Buzz Bar
986
Fractions
729
Happy Numbers
759
Happy Numbers (Long)
862
Inventory Sequence
800
Leap Years
847
Leyland Numbers
958
Look and Say
726
Lucky Numbers
698
Niven Numbers
787
Niven Numbers (Long)
872
Odious Numbers
851
Odious Numbers (Long)
847
Ordinal Numbers
711
Pascal’s Triangle
907
Pernicious Numbers
766
Pernicious Numbers (Long)
815
Poker
680
Prime Numbers
835
Prime Numbers (Long)
892
Quine
946
Recamán
931
Repeating Decimals
458
Roman to Arabic
693
Smith Numbers
765
Time Distance
690
Tongue-twisters
737
Vampire Numbers
750
Van Eck Sequence
831
π
451
τ
441
φ
698
√2
707
𝑒
700