Abundant Numbers
761
Abundant Numbers (Long)
890
ASCII Table
722
Catalan Numbers
841
Christmas Trees
710
Collatz
814
Divisors
985
Emirp Numbers
746
Emirp Numbers (Long)
683
Evil Numbers
854
Evil Numbers (Long)
834
Fibonacci
935
Fizz Buzz
977
Foo Fizz Buzz Bar
986
Fractions
731
Happy Numbers
760
Happy Numbers (Long)
863
Inventory Sequence
803
Leap Years
848
Leyland Numbers
959
Look and Say
728
Lucky Numbers
700
Niven Numbers
788
Niven Numbers (Long)
874
Odious Numbers
852
Odious Numbers (Long)
849
Ordinal Numbers
703
Pascal’s Triangle
908
Pernicious Numbers
767
Pernicious Numbers (Long)
817
Poker
682
Prime Numbers
835
Prime Numbers (Long)
893
Quine
947
Recamán
932
Repeating Decimals
460
Roman to Arabic
694
Smith Numbers
766
Time Distance
691
Tongue-twisters
735
Vampire Numbers
752
Van Eck Sequence
833
π
451
τ
442
φ
699
√2
708
𝑒
701