Abundant Numbers
761
Abundant Numbers (Long)
903
ASCII Table
721
Catalan Numbers
840
Christmas Trees
709
Collatz
877
Divisors
984
Emirp Numbers
757
Emirp Numbers (Long)
682
Evil Numbers
854
Evil Numbers (Long)
833
Fibonacci
935
Fizz Buzz
977
Foo Fizz Buzz Bar
986
Fractions
730
Happy Numbers
759
Happy Numbers (Long)
863
Inventory Sequence
802
Leap Years
848
Leyland Numbers
959
Look and Say
727
Lucky Numbers
699
Niven Numbers
787
Niven Numbers (Long)
873
Odious Numbers
852
Odious Numbers (Long)
848
Ordinal Numbers
711
Pascal’s Triangle
908
Pernicious Numbers
767
Pernicious Numbers (Long)
816
Poker
681
Prime Numbers
835
Prime Numbers (Long)
892
Quine
946
Recamán
932
Repeating Decimals
459
Roman to Arabic
693
Smith Numbers
765
Time Distance
690
Tongue-twisters
738
Vampire Numbers
750
Van Eck Sequence
832
π
451
τ
442
φ
698
√2
707
𝑒
701