12 Days of Christmas
402
99 Bottles of Beer
391
Abundant Numbers
708
Abundant Numbers (Long)
778
Arabic to Roman
486
Arithmetic Numbers
618
Arrows
219
ASCII Table
470
Card Number Validation
525
Christmas Trees
553
Collatz
765
CSS Colors
118
Day of Week
402
Diamonds
389
Divisors
491933
Emirp Numbers
496
Emirp Numbers (Long)
573
Emojify
268
Evil Numbers
873
Evil Numbers (Long)
851
Factorial Factorisation
257
Farey Sequence
566
Fibonacci
935
Fizz Buzz
849707891373
Foo Fizz Buzz Bar
317
784
Forsyth–Edwards Notation
542
Fractions
563
Happy Numbers
491
Happy Numbers (Long)
618
ISBN
605
Leap Years
815
Look and Say
388
Lucky Numbers
481
Morse Encoder
172
Niven Numbers
758
Niven Numbers (Long)
827
Number Spiral
202
Odious Numbers
852
Odious Numbers (Long)
849
Ordinal Numbers
554
Pangram Grep
772
Pascal’s Triangle
775
Pernicious Numbers
798
Prime Numbers
934
Prime Numbers (Long)
702
Quine
944
Recamán
656
Rijndael S-box
152
ROT13
456
Seven Segment
314
Smith Numbers
403
Spelling Numbers
220
Star Wars GPT
437
Tic-tac-toe
425
Time Distance
369
Tongue-twisters
271
United States
205
Zeckendorf Representation
560
π
364
φ
581
√2
978
𝑒
976