12 Days of Christmas
446
99 Bottles of Beer
421
Abundant Numbers
710667
Arabic to Roman
463
Christmas Trees
628770
CSS Colors
267291
Cubes
512
Diamonds
540
Divisors
947891
Emirp Numbers
487526
Emojify
Evil Numbers
851743
Fibonacci
947962
Fizz Buzz
966898882
Happy Numbers
593469
Intersection
545
Kolakoski Constant
412455
Kolakoski Sequence
895865
Leap Years
843767
Levenshtein Distance
473
Leyland Numbers
785746
Look and Say
911
Lucky Tickets
510
Morse Decoder
500
Morse Encoder
576
Niven Numbers
898806
Odious Numbers
851743
Ordinal Numbers
647719
Pangram Grep
830
Pascal’s Triangle
889
Pernicious Numbers
702700
Prime Numbers
909844
Quine
926
Recamán
797737
Rock-paper-scissors-Spock-lizard
415
Roman to Arabic
543
Rule 110
675
Seven Segment
433
Sierpiński Triangle
711836
Tongue-twisters
366
Vampire Numbers
433435
λ
470416
π
677
τ
553
φ
627417
√2
449
𝑒
639