12 Days of Christmas
463
99 Bottles of Beer
598
Abundant Numbers
670
Arabic to Roman
503
Christmas Trees
529
CSS Colors
48
Cubes
566
Diamonds
622
Divisors
838
Emirp Numbers
309
Evil Numbers
564
Fibonacci
961
Fizz Buzz
858
Happy Numbers
435
Kolakoski Sequence
421
Leap Years
808
Look and Say
507
Niven Numbers
879
Odious Numbers
559
Ordinal Numbers
655
Pangram Grep
621
Pernicious Numbers
564
Prime Numbers
669
Quine
941
Recamán
605
Rule 110
464
Seven Segment
271
Spelling Numbers
545
Tongue-twisters
410
United States
134
Vampire Numbers
103
Van Eck Sequence
611
π
985724745640203
τ
9658
200
φ
86
168
√2
82
203
𝑒
86
160