12 Days of Christmas
407
99 Bottles of Beer
472
Abundant Numbers
738
Abundant Numbers (Long)
808
Arabic to Roman
569
Arithmetic Numbers
770
Arrows
575
Ascending Primes
659
ASCII Table
574
Calendar
718
Card Number Validation
517
Catalan Numbers
888
Catalan’s Constant
421
Christmas Trees
745
Collatz
785
CSS Colors
113
Day of Week
771
Diamonds
593
Divisors
911
Emirp Numbers
681
Emirp Numbers (Long)
647
Emojify
413
Evil Numbers
980
Evil Numbers (Long)
950
Factorial Factorisation
465
Farey Sequence
505
Fibonacci
932
Fizz Buzz
890
Foo Fizz Buzz Bar
783
Fractions
634
Happy Numbers
601
Happy Numbers (Long)
718
Hexdump
601
Inventory Sequence
815
ISBN
613
Kaprekar Numbers
438
Kolakoski Constant
578
Kolakoski Sequence
833
Leap Years
899
Leyland Numbers
810
ln 2
946
Medal Tally
564
Niven Numbers
933
Niven Numbers (Long)
848
Number Spiral
373
Odious Numbers
849
Odious Numbers (Long)
827
Ordinal Numbers
682
PalindromemordnilaP
692
Pangram Grep
767
Pascal’s Triangle
853
Pernicious Numbers
779
Pernicious Numbers (Long)
876
Prime Numbers
934
Prime Numbers (Long)
950
Quine
945
Recamán
752
Rijndael S-box
149
Roman to Arabic
606
ROT13
797
Scrambled Sort
695
Seven Segment
547
Spelling Numbers
283
Tongue-twisters
363
Transpose Sentence
681
United States
624
γ
370
π
777
τ
443
φ
917
√2
972
𝑒
970