12 Days of Christmas
828
99 Bottles of Beer
710
Abundant Numbers
744
Arabic to Roman
503
Christmas Trees
530
CSS Colors
48
Cubes
584
Diamonds
622
Divisors
838
Emirp Numbers
458
Evil Numbers
574
Fibonacci
960
Fizz Buzz
859
Happy Numbers
590
Kolakoski Sequence
436
Leap Years
809
Look and Say
505
Niven Numbers
908
Odious Numbers
579
Ordinal Numbers
658
Pangram Grep
620
Pernicious Numbers
563
Prime Numbers
780
Quine
941
Recamán
604
Rule 110
444
Seven Segment
294
Spelling Numbers
603
Tongue-twisters
682
United States
152
Vampire Numbers
104
Van Eck Sequence
611
π
1005724886344203
τ
9758
200
φ
88
168
√2
82
203
𝑒
87
160