12 Days of Christmas
862
99 Bottles of Beer
823
Abundant Numbers
768
Abundant Numbers (Long)
910
Arabic to Roman
799
Arithmetic Numbers
893
Arrows
543
Ascending Primes
748
ASCII Table
720
Calendar
943
Card Number Validation
640
Catalan Numbers
888
Catalan’s Constant
494
Christmas Trees
854
Collatz
867
CSS Colors
256
Day of Week
962
Diamonds
708
Divisors
979
Emirp Numbers
828
Emirp Numbers (Long)
769
Emojify
415
Evil Numbers
980
Evil Numbers (Long)
949
Factorial Factorisation
586
Farey Sequence
523
Fibonacci
932
Fizz Buzz
973
Foo Fizz Buzz Bar
981
Fractions
745
Happy Numbers
774
Happy Numbers (Long)
847
Hexdump
881
Inventory Sequence
863
ISBN
784
Kaprekar Numbers
509
Kolakoski Constant
672
Kolakoski Sequence
849
Leap Years
899
Leyland Numbers
952
ln 2
964
Medal Tally
747
Niven Numbers
933
Niven Numbers (Long)
848
Number Spiral
458
Odious Numbers
849
Odious Numbers (Long)
827
Ordinal Numbers
835
PalindromemordnilaP
852
Pangram Grep
905
Pascal’s Triangle
921
Pernicious Numbers
779
Pernicious Numbers (Long)
895
Prime Numbers
934
Prime Numbers (Long)
950
Quine
945
Recamán
833
Rijndael S-box
215
Roman to Arabic
801
ROT13
916
Scrambled Sort
893
Seven Segment
745
Spelling Numbers
461
Tongue-twisters
650
Transpose Sentence
858
United States
841
γ
443
π
869
τ
496
φ
934
√2
972
𝑒
970