12 Days of Christmas
405
99 Bottles of Beer
395
Abundant Numbers
721
Abundant Numbers (Long)
797
Arithmetic Numbers
633
Arrows
224
ASCII Table
479
Card Number Validation
545
Christmas Trees
563
Collatz
781
Diamonds
397
Divisors
525947
Emirp Numbers
505
Emirp Numbers (Long)
589
Emojify
272
Evil Numbers
889
Evil Numbers (Long)
872
Factorial Factorisation
265
Farey Sequence
586
Fibonacci
947
Fizz Buzz
873735898407
Foo Fizz Buzz Bar
335
795
Forsyth–Edwards Notation
556
Fractions
579
Happy Numbers
500
Happy Numbers (Long)
635
ISBN
623
Leap Years
827
Look and Say
397
Lucky Numbers
495
Morse Encoder
176
Niven Numbers
772
Niven Numbers (Long)
847
Number Spiral
208
Odious Numbers
870
Odious Numbers (Long)
872
Ordinal Numbers
569
Pangram Grep
792
Pascal’s Triangle
794
Pernicious Numbers
816
Prime Numbers
952
Prime Numbers (Long)
721
Quine
969
Recamán
671
Rijndael S-box
155
ROT13
476
Seven Segment
321
Smith Numbers
415
Tic-tac-toe
442
Time Distance
377
Tongue-twisters
276
United States
214
Zeckendorf Representation
583
π
372
φ
598
√2
1,000
𝑒
1,000