12 Days of Christmas
229
99 Bottles of Beer
339
Abundant Numbers
706
Abundant Numbers (Long)
773
848
Arabic to Roman
392
Arithmetic Numbers
589
Arrows
207
Ascending Primes
107
ASCII Table
238
Catalan Numbers
636
Collatz
648
CSS Colors
75
Day of Week
546
Divisors
811
Emirp Numbers
485
Emirp Numbers (Long)
543
Emojify
266
Evil Numbers
769
Evil Numbers (Long)
738
Farey Sequence
315
Fibonacci
787
Fizz Buzz
846
630
Foo Fizz Buzz Bar
712
Fractions
470
Happy Numbers
375
433
Happy Numbers (Long)
401
Leap Years
640
699
Look and Say
378
Morse Decoder
120
Morse Encoder
153
Niven Numbers
716
Niven Numbers (Long)
780
Number Spiral
201
Odious Numbers
781
Odious Numbers (Long)
778
Pangram Grep
679
780
Pascal’s Triangle
62
122
Pernicious Numbers
453
Pernicious Numbers (Long)
558
Prime Numbers
643
532
Prime Numbers (Long)
668
Quine
945
Roman to Arabic
404
ROT13
472
Smith Numbers
477
Tongue-twisters
344
United States
87
π
8496119969898114674373809155644813213726621261055729
111134146174247447505679374013834220313566257107111100
𝑒
58609777798694543754717744543694119195086914727
8510611312925603544466527371023391609458197817377