Abundant Numbers
842
Abundant Numbers (Long)
821
Arithmetic Numbers
768
Collatz
757
CSS Colors
271
Divisors
961
Emirp Numbers
882
Evil Numbers
980
Evil Numbers (Long)
949
Factorial Factorisation
534
Fibonacci
984
Fizz Buzz
954
Happy Numbers
977
Kolakoski Sequence
878
Leap Years
918
ln 2
910
Look and Say
776
Lucky Numbers
820
Niven Numbers
954
Niven Numbers (Long)
879
Odious Numbers
977
Odious Numbers (Long)
945
Ordinal Numbers
889
Pangram Grep
938
Pascal’s Triangle
901
Pernicious Numbers
828
Prime Numbers
934
Quine
976
Recamán
890
Rock-paper-scissors-Spock-lizard
755
Roman to Arabic
769
ROT13
808
Sierpiński Triangle
887
Tic-tac-toe
550
π
683
τ
661
√2
952
𝑒
950