12 Days of Christmas
828
99 Bottles of Beer
707
Abundant Numbers
744
Arabic to Roman
503
Christmas Trees
530
CSS Colors
48
Cubes
576
Diamonds
621
Divisors
838
Emirp Numbers
458
Evil Numbers
574
Fibonacci
961
Fizz Buzz
859
Happy Numbers
591
Kolakoski Sequence
433
Leap Years
809
Look and Say
506
Niven Numbers
908
Odious Numbers
579
Ordinal Numbers
658
Pangram Grep
620
Pernicious Numbers
563
Prime Numbers
781
Quine
941
Recamán
604
Rule 110
443
Seven Segment
294
Spelling Numbers
603
Tongue-twisters
682
United States
152
Vampire Numbers
103
Van Eck Sequence
611
π
1005724886344203
τ
9758
200
φ
88
168
√2
82
203
𝑒
87
160