12 Days of Christmas
828
99 Bottles of Beer
711
Abundant Numbers
751
Arabic to Roman
504
Christmas Trees
535
CSS Colors
48
Cubes
584
Diamonds
632
Divisors
847
Emirp Numbers
460
Evil Numbers
575
Fibonacci
964
Fizz Buzz
864
Happy Numbers
596
Kolakoski Sequence
433
Leap Years
870
Look and Say
511
Niven Numbers
921
Odious Numbers
582
Ordinal Numbers
660
Pangram Grep
628
Pernicious Numbers
567
Prime Numbers
781
Quine
942
Recamán
611
Rule 110
477
Seven Segment
298
Spelling Numbers
601
Tongue-twisters
681
United States
175
Vampire Numbers
105
Van Eck Sequence
613
π
1005725896345204
τ
9859
200
φ
89
169
√2
83
204
𝑒
88
161