12 Days of Christmas
840
99 Bottles of Beer
698
Abundant Numbers
708
Abundant Numbers (Long)
841
Arithmetic Numbers
827
Ascending Primes
418
ASCII Table
592
Card Number Validation
608
Catalan’s Constant
70
Collatz
813
CSS Colors
171
Day of Week
869
Diamonds
473
Divisors
564
877
Emirp Numbers
546
Emirp Numbers (Long)
599
Emojify
254
Evil Numbers
357
786
Evil Numbers (Long)
769
Farey Sequence
464
Fibonacci
522
Fizz Buzz
941960
Foo Fizz Buzz Bar
478
861975
Fractions
681
Happy Numbers
633
Kaprekar Numbers
295
Kolakoski Constant
67
Kolakoski Sequence
50
Leap Years
695
Leyland Numbers
617
Niven Numbers
802
Number Spiral
313256243209
Odious Numbers
784
Odious Numbers (Long)
782
Ordinal Numbers
647
Partition Numbers
433403
Pascal’s Triangle
66
Prime Numbers
577
Prime Numbers (Long)
612
Quine
944
ROT13
556
Smith Numbers
55
Spelling Numbers
393
Tongue-twisters
640
Transpose Sentence
600
United States
278
λ
159
π
261
𝑒
46