12 Days of Christmas
874
99 Bottles of Beer
685
Abundant Numbers
738
Abundant Numbers (Long)
876
Arithmetic Numbers
743
Arrows
244
ASCII Table
596
Card Number Validation
652
Christmas Trees
635
Collatz
912
CSS Colors
246
Day of Week
500
Diamonds
466
Divisors
490984
Emirp Numbers
611
Emirp Numbers (Long)
687
Emojify
297
Evil Numbers
872
Evil Numbers (Long)
850
Factorial Factorisation
323
Farey Sequence
641
Fibonacci
935
Fizz Buzz
855709977375
Foo Fizz Buzz Bar
323
986
Forsyth–Edwards Notation
652
Fractions
661
Happy Numbers
632
Happy Numbers (Long)
728
ISBN
773
Leap Years
815
Look and Say
476
Lucky Numbers
499
Morse Encoder
252
Niven Numbers
759
Niven Numbers (Long)
828
Number Spiral
247
Odious Numbers
852
Odious Numbers (Long)
848
Ordinal Numbers
680
Pangram Grep
910
Pascal’s Triangle
835
Pernicious Numbers
798
Prime Numbers
934
Prime Numbers (Long)
702
Quine
946
Recamán
727
Rijndael S-box
212
ROT13
522
Seven Segment
430
Smith Numbers
547
Spelling Numbers
372
Star Wars GPT
601
Tic-tac-toe
546
Time Distance
663
Tongue-twisters
487
United States
287
Zeckendorf Representation
766
π
407
φ
594
√2
981
𝑒
978