12 Days of Christmas
478
99 Bottles of Beer
597
Abundant Numbers
676
Arabic to Roman
504
Christmas Trees
533
CSS Colors
48
Cubes
567
Diamonds
628
Divisors
847
Emirp Numbers
313
Evil Numbers
565
Fibonacci
965
Fizz Buzz
861
Happy Numbers
439
Kolakoski Sequence
422
Leap Years
841
Look and Say
512
Niven Numbers
887
Odious Numbers
562
Ordinal Numbers
657
Pangram Grep
628
Pernicious Numbers
567
Prime Numbers
669
Quine
942
Recamán
612
Rule 110
473
Seven Segment
279
Spelling Numbers
542
Tongue-twisters
412
United States
135
Vampire Numbers
104
Van Eck Sequence
615
π
995725745638204
τ
9659
200
φ
87
168
√2
83
204
𝑒
87
161