Abundant Numbers
845
Abundant Numbers (Long)
825
Collatz
787
CSS Colors
270
Divisors
985
Emirp Numbers
886
Evil Numbers
982
Evil Numbers (Long)
952
Factorial Factorisation
538
Fibonacci
987
Fizz Buzz
956
Happy Numbers
981
Kolakoski Sequence
880
Leap Years
921
ln 2
952
Look and Say
781
Lucky Numbers
828
Niven Numbers
959
Niven Numbers (Long)
887
Odious Numbers
980
Odious Numbers (Long)
950
Ordinal Numbers
932
Pangram Grep
943
Pascal’s Triangle
903
Pernicious Numbers
832
Prime Numbers
934
Quine
977
Recamán
897
Rock-paper-scissors-Spock-lizard
758
Roman to Arabic
773
ROT13
808
Sierpiński Triangle
897
Tic-tac-toe
554
π
685
τ
664
√2
978
𝑒
976