12 Days of Christmas
840
99 Bottles of Beer
699
Abundant Numbers
707
Abundant Numbers (Long)
840
Arithmetic Numbers
858
Ascending Primes
416
ASCII Table
592
Card Number Validation
613
Catalan’s Constant
69
Collatz
876
CSS Colors
172
Day of Week
867
Diamonds
473
Divisors
563
876
Emirp Numbers
546
Emirp Numbers (Long)
598
Emojify
256
Evil Numbers
357
785
Evil Numbers (Long)
768
Farey Sequence
463
Fibonacci
522
Fizz Buzz
941960
Foo Fizz Buzz Bar
478
860974
Fractions
680
Happy Numbers
632
Kaprekar Numbers
294
Kolakoski Constant
69
Kolakoski Sequence
50
Leap Years
695
Leyland Numbers
617
Niven Numbers
802
Number Spiral
313255243209
Odious Numbers
783
Odious Numbers (Long)
781
Ordinal Numbers
647
Partition Numbers
431412
Pascal’s Triangle
66
Prime Numbers
577
Prime Numbers (Long)
612
Quine
946
ROT13
553
Smith Numbers
55
Spelling Numbers
392
Tongue-twisters
640
Transpose Sentence
597
United States
288
λ
159
π
260
𝑒
46