12 Days of Christmas
775
99 Bottles of Beer
798
Abundant Numbers
813
Arrows
704
CSS Colors
656
Diamonds
64
Divisors
848
Emirp Numbers
810
Evil Numbers
797
957
Fibonacci
896
932
Fizz Buzz
828
986
889
Happy Numbers
754
808
Leap Years
764784
805
529887
781
782
Leyland Numbers
742
Lucky Tickets
741
Morse Decoder
359
Morse Encoder
471
Niven Numbers
964
914
Odious Numbers
793
781
Ordinal Numbers
907
Pangram Grep
Pascal’s Triangle
752
Pernicious Numbers
665
763
Prime Numbers
970
834
Quine
962864479941681554916486932413864938945534477676444945413854
Rule 110
535
Seven Segment
515
Spelling Numbers
796
United States
λ
186
531
1242051029679
π
764
τ
740
φ
224
√2
232
𝑒
222