12 Days of Christmas
878
99 Bottles of Beer
824
Abundant Numbers
768
Abundant Numbers (Long)
895
Arabic to Roman
799
Arithmetic Numbers
893
Arrows
544
Ascending Primes
747
ASCII Table
720
Calendar
943
Card Number Validation
639
Catalan Numbers
888
Catalan’s Constant
494
Christmas Trees
854
Collatz
866
CSS Colors
256
Day of Week
962
Diamonds
708
Divisors
979
Emirp Numbers
829
Emirp Numbers (Long)
779
Emojify
415
Evil Numbers
980
Evil Numbers (Long)
950
Factorial Factorisation
586
Farey Sequence
574
Fibonacci
932
Fizz Buzz
973
Foo Fizz Buzz Bar
982
Fractions
746
Happy Numbers
774
Happy Numbers (Long)
847
Hexdump
887
Inventory Sequence
863
ISBN
783
Kaprekar Numbers
509
Kolakoski Constant
672
Kolakoski Sequence
849
Leap Years
899
Leyland Numbers
952
ln 2
963
Medal Tally
746
Niven Numbers
933
Niven Numbers (Long)
848
Number Spiral
457
Odious Numbers
849
Odious Numbers (Long)
827
Ordinal Numbers
837
PalindromemordnilaP
851
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
892
Seven Segment
746
Spelling Numbers
461
Tongue-twisters
650
Transpose Sentence
858
United States
842
γ
447
π
869
τ
495
φ
934
√2
972
𝑒
970