12 Days of Christmas
630
99 Bottles of Beer
433
Abundant Numbers
593
683
Arabic to Roman
Arrows
263
ASCII Table
439
Catalan Numbers
82
Catalan’s Constant
143
Christmas Trees
333
Collatz
634
CSS Colors
266
Day of Week
746
Divisors
563
Emirp Numbers
395
557
Emirp Numbers (Long)
423
553
Emojify
313
Evil Numbers
500
528
Evil Numbers (Long)
513
600
Fibonacci
465
507
545
Fizz Buzz
589
Foo Fizz Buzz Bar
689
687
613
606
Fractions
568
504
Happy Numbers
438
Happy Numbers (Long)
461
Hexdump
406
ISBN
492
Kolakoski Constant
134
Kolakoski Sequence
316
Leap Years
701
Levenshtein Distance
691
Leyland Numbers
623
Look and Say
248
Lucky Numbers
421
Morse Decoder
183
Morse Encoder
240
Musical Chords
105
Niven Numbers
724
Niven Numbers (Long)
833
Odious Numbers
569
627
Odious Numbers (Long)
591
633
Ordinal Numbers
328
Pangram Grep
433
Pascal’s Triangle
388
Pernicious Numbers
292
Poker
289
Prime Numbers
450
489
Prime Numbers (Long)
484
Recamán
415
Roman to Arabic
516
439
Seven Segment
304
Sierpiński Triangle
144
Smith Numbers
355
Spelling Numbers
339
Time Distance
474
Tongue-twisters
706
United States
156
Van Eck Sequence
229
λ
674
π
120
τ
118
φ
117
√2
120
𝑒
83