12 Days of Christmas
440
99 Bottles of Beer
465
Abundant Numbers
698647
Arabic to Roman
447
Christmas Trees
618744
CSS Colors
256266
Cubes
499
Diamonds
523
Divisors
933863
Emirp Numbers
478511
Emojify
Evil Numbers
836719
Fibonacci
935938
Fizz Buzz
955891868
Happy Numbers
582459
Intersection
513
Kolakoski Constant
380436
Kolakoski Sequence
864810
Leap Years
831746
Levenshtein Distance
460
Leyland Numbers
765718
Look and Say
874
Lucky Tickets
478
Morse Decoder
486
Morse Encoder
559
Niven Numbers
881782
Odious Numbers
834717
Ordinal Numbers
631688
Pangram Grep
776
Pascal’s Triangle
845
Pernicious Numbers
686676
Prime Numbers
892813
Quine
185
Recamán
780712
Rock-paper-scissors-Spock-lizard
413
Roman to Arabic
522
Rule 110
652
Seven Segment
417
Sierpiński Triangle
697809
Tongue-twisters
354
Vampire Numbers
422414
λ
460404
π
658
τ
534
φ
609401
√2
432
𝑒
615