12 Days of Christmas
866
99 Bottles of Beer
757
Abundant Numbers
724830
Arabic to Roman
599
Christmas Trees
705855
CSS Colors
582637
Cubes
644
Diamonds
579
Divisors
979908
Emirp Numbers
579720
Emojify
Evil Numbers
834741
Fibonacci
932929
Fizz Buzz
952973956
Happy Numbers
746725
Intersection
575
Kolakoski Constant
439495
Kolakoski Sequence
879806
Leap Years
829740
Levenshtein Distance
584
Leyland Numbers
892776
Look and Say
891
Lucky Tickets
577
Morse Decoder
708
Morse Encoder
703
Niven Numbers
876895
Odious Numbers
831762
Ordinal Numbers
762713
Pangram Grep
780
Pascal’s Triangle
898
Pernicious Numbers
683690
Prime Numbers
891928
Quine
886
Recamán
857695
Rock-paper-scissors-Spock-lizard
667
Roman to Arabic
602
Rule 110
653
Seven Segment
563
Sierpiński Triangle
709809
Tongue-twisters
596
Vampire Numbers
160151
λ
211197
π
τ
φ
619
√2
𝑒
606