12 Days of Christmas
840
99 Bottles of Beer
699
Abundant Numbers
707
Abundant Numbers (Long)
841
Arithmetic Numbers
826
Ascending Primes
417
ASCII Table
592
Card Number Validation
607
Catalan’s Constant
70
Collatz
877
CSS Colors
171
Day of Week
868
Diamonds
473
Divisors
564
877
Emirp Numbers
546
Emirp Numbers (Long)
599
Emojify
256
Evil Numbers
357
785
Evil Numbers (Long)
769
Farey Sequence
464
Fibonacci
522
Fizz Buzz
941960
Foo Fizz Buzz Bar
478
860975
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
313255243209
Odious Numbers
784
Odious Numbers (Long)
782
Ordinal Numbers
647
Partition Numbers
433414
Pascal’s Triangle
66
Prime Numbers
577
Prime Numbers (Long)
612
Quine
946
ROT13
556
Smith Numbers
55
Spelling Numbers
393
Tongue-twisters
640
Transpose Sentence
599
United States
280
λ
159
π
261
𝑒
46