Abundant Numbers
845
Abundant Numbers (Long)
826
Arithmetic Numbers
786
Collatz
787
CSS Colors
271
Divisors
985
Emirp Numbers
886
Evil Numbers
982
Evil Numbers (Long)
952
Factorial Factorisation
537
Fibonacci
987
Fizz Buzz
956
Happy Numbers
982
Kolakoski Sequence
880
Leap Years
921
ln 2
953
Look and Say
781
Lucky Numbers
829
Niven Numbers
960
Niven Numbers (Long)
887
Odious Numbers
980
Odious Numbers (Long)
950
Ordinal Numbers
932
Pangram Grep
944
Pascal’s Triangle
904
Pernicious Numbers
832
Prime Numbers
935
Quine
974
Recamán
897
Rock-paper-scissors-Spock-lizard
756
Roman to Arabic
773
ROT13
809
Sierpiński Triangle
898
Tic-tac-toe
554
π
685
τ
665
√2
978
𝑒
976