12 Days of Christmas
777
99 Bottles of Beer
760
Abundant Numbers
984
Arabic to Roman
Christmas Trees
859
Cubes
727
Diamonds
853
Divisors
1,000
Emirp Numbers
652
Emojify
Evil Numbers
905
Fibonacci
957
Fizz Buzz
621
Happy Numbers
604
Intersection
946
Kolakoski Constant
497
Kolakoski Sequence
604
Leap Years
738
Leyland Numbers
866
Look and Say
773
Lucky Tickets
Morse Decoder
356
Morse Encoder
429
Niven Numbers
1,000
Odious Numbers
929
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
851
Pernicious Numbers
925
Prime Numbers
891
Recamán
686
Rule 110
Seven Segment
606
Sierpiński Triangle
Tongue-twisters
712
United States
497
Vampire Numbers
548
λ
261
π
108
τ
107
φ
108
√2
108
𝑒
576