12 Days of Christmas
505
99 Bottles of Beer
593
Abundant Numbers
739
Abundant Numbers (Long)
877
859
Arabic to Roman
551
Arithmetic Numbers
697
Arrows
235
Ascending Primes
124
ASCII Table
302
Catalan Numbers
639
Collatz
775
CSS Colors
171
Day of Week
680
Divisors
877
Emirp Numbers
600
Emirp Numbers (Long)
657
Emojify
297
Evil Numbers
770
Evil Numbers (Long)
741
Farey Sequence
357
Fibonacci
789
Fizz Buzz
929
634
Foo Fizz Buzz Bar
900
Fractions
553
Happy Numbers
486
564
Happy Numbers (Long)
476
Leap Years
642
704
Look and Say
467
Morse Decoder
103
Morse Encoder
201
Niven Numbers
722
Niven Numbers (Long)
789
Number Spiral
247
Odious Numbers
784
Odious Numbers (Long)
782
Pangram Grep
806
789
Pascal’s Triangle
67
123
Pernicious Numbers
455
Pernicious Numbers (Long)
575
Prime Numbers
643
532
Prime Numbers (Long)
669
Quine
944
Roman to Arabic
537
ROT13
469
Smith Numbers
651
Tongue-twisters
618
United States
118
π
5084961199998100114674362839159654813213832621261135830
101134160174258950516398454013859520413578253108132111
𝑒
4259619981818895553855747946553895120245187944830
8110711513026613846467231371035921619562198828482