12 Days of Christmas
402
99 Bottles of Beer
391
Abundant Numbers
708
Abundant Numbers (Long)
777
Arithmetic Numbers
627
Arrows
219
ASCII Table
470
Card Number Validation
524
Christmas Trees
553
Collatz
765
CSS Colors
118
Day of Week
401
Diamonds
389
Divisors
491933
Emirp Numbers
496
Emirp Numbers (Long)
572
Emojify
268
Evil Numbers
873
Evil Numbers (Long)
850
Factorial Factorisation
258
Farey Sequence
566
Fibonacci
935
Fizz Buzz
849707891371
Foo Fizz Buzz Bar
317
783
Forsyth–Edwards Notation
542
Fractions
563
Happy Numbers
491
Happy Numbers (Long)
617
ISBN
605
Leap Years
815
Look and Say
388
Lucky Numbers
481
Morse Encoder
172
Niven Numbers
757
Niven Numbers (Long)
826
Number Spiral
201
Odious Numbers
852
Odious Numbers (Long)
848
Ordinal Numbers
554
Pangram Grep
772
Pascal’s Triangle
774
Pernicious Numbers
798
Prime Numbers
934
Prime Numbers (Long)
702
Quine
946
Recamán
656
Rijndael S-box
152
ROT13
456
Seven Segment
314
Smith Numbers
403
Spelling Numbers
220
Star Wars GPT
436
Tic-tac-toe
424
Time Distance
369
Tongue-twisters
271
United States
210
Zeckendorf Representation
560
π
364
φ
581
√2
977
𝑒
976