12 Days of Christmas
413
99 Bottles of Beer
472
Abundant Numbers
741
Abundant Numbers (Long)
813
Arabic to Roman
570
Arithmetic Numbers
777
Arrows
578
Ascending Primes
664
ASCII Table
574
Calendar
719
Card Number Validation
521
Catalan Numbers
893
Catalan’s Constant
421
Christmas Trees
748
Collatz
787
CSS Colors
113
Day of Week
771
Diamonds
597
Divisors
933
Emirp Numbers
684
Emirp Numbers (Long)
652
Emojify
416
Evil Numbers
982
Evil Numbers (Long)
953
Factorial Factorisation
469
Farey Sequence
505
Fibonacci
935
Fizz Buzz
891
Foo Fizz Buzz Bar
784
Fractions
634
Happy Numbers
604
Happy Numbers (Long)
723
Hexdump
601
Inventory Sequence
822
ISBN
616
Kaprekar Numbers
456
Kolakoski Constant
582
Kolakoski Sequence
835
Leap Years
901
Leyland Numbers
817
ln 2
953
Medal Tally
572
Niven Numbers
939
Niven Numbers (Long)
856
Number Spiral
374
Odious Numbers
852
Odious Numbers (Long)
832
Ordinal Numbers
692
PalindromemordnilaP
702
Pangram Grep
772
Pascal’s Triangle
856
Pernicious Numbers
783
Pernicious Numbers (Long)
887
Prime Numbers
935
Prime Numbers (Long)
952
Quine
947
Recamán
758
Rijndael S-box
153
Roman to Arabic
609
ROT13
798
Scrambled Sort
704
Seven Segment
551
Spelling Numbers
290
Tongue-twisters
363
Transpose Sentence
686
United States
625
γ
369
π
779
τ
445
φ
919
√2
978
𝑒
976