12 Days of Christmas
285
99 Bottles of Beer
125
356
372
403
591
Abundant Numbers
554
Abundant Numbers (Long)
728
Arithmetic Numbers
721
Card Number Validation
393
Catalan’s Constant
59
Christmas Trees
525
CSS Colors
89
Cubes
19
27
33
Day of Week
713
717
Diamonds
59
329
Divisors
708
Emirp Numbers
470
Emirp Numbers (Long)
527
Emojify
268
Evil Numbers
643
493
Evil Numbers (Long)
624
531
Factorial Factorisation
76
Fibonacci
934
580
Fizz Buzz
344
848
503
Foo Fizz Buzz Bar
461
Fractions
589
255
Game of Life
228
Happy Numbers
211
291
Happy Numbers (Long)
407
ISBN
294
Kolakoski Constant
60
Leap Years
715
757
784
616
ln 2
70
24
59
Look and Say
434
667
Lucky Numbers
19
Morse Encoder
147
Niven Numbers
554
654
703
Niven Numbers (Long)
641
716
887
Odious Numbers
753
Odious Numbers (Long)
765
Ordinal Numbers
349
Pascal’s Triangle
101
Pernicious Numbers
235
Pernicious Numbers (Long)
337
Prime Numbers
69
484
500
Prime Numbers (Long)
528
580
Quine
966
479
836
946
Rijndael S-box
112
Seven Segment
33
155
311
Sierpiński Triangle
152
Spelling Numbers
150
Tongue-twisters
280
United States
83
103
92
73
γ
62
λ
175
97
163
192
π
17
83
94
118
116
78
98
98
115
76
197
53
61
81
91
56
64
48
133
99
135
26
62
156
125
151
330
29
45
102
134
160
172
25
74
50
50
376
101
37
156
40
142
340
203
135
68
251
107
132
144
151
τ
368
φ
50
√2
714
𝑒
71
37