12 Days of Christmas
617
99 Bottles of Beer
422
Abundant Numbers
572614
Arabic to Roman
133
Arrows
235
ASCII Table
394
Catalan Numbers
63
Catalan’s Constant
131
Christmas Trees
311
Collatz
592
CSS Colors
240
Day of Week
691
Divisors
531
Emirp Numbers
380521
Emirp Numbers (Long)
398502
Emojify
256
Evil Numbers
485499
Evil Numbers (Long)
489559
Fibonacci
454487537
Fizz Buzz
574
Foo Fizz Buzz Bar
640667580594
Fractions
540454
Happy Numbers
406
Happy Numbers (Long)
417
Hexdump
369
ISBN
433
Kolakoski Constant
122
Kolakoski Sequence
289
Leap Years
642
Levenshtein Distance
650
Leyland Numbers
563
Look and Say
227
Lucky Numbers
355
Morse Decoder
170
Morse Encoder
220
Musical Chords
92
Niven Numbers
677
Niven Numbers (Long)
763
Odious Numbers
549589
Odious Numbers (Long)
560583
Ordinal Numbers
303
Pangram Grep
389
Pascal’s Triangle
357
Pernicious Numbers
272
Poker
264
Prime Numbers
436463
Prime Numbers (Long)
447
Recamán
383
Roman to Arabic
492397
Seven Segment
276
Sierpiński Triangle
134
Smith Numbers
311
Spelling Numbers
296
Time Distance
431
Tongue-twisters
691
United States
145
Van Eck Sequence
210
λ
621
π
112
τ
108
φ
107
√2
109
𝑒
75