12 Days of Christmas
425
99 Bottles of Beer
769
Abundant Numbers
822
Arrows
502
CSS Colors
413
Diamonds
65
Divisors
856
Emirp Numbers
672
Evil Numbers
799
958
Fibonacci
899
935
Fizz Buzz
833
992
977
Happy Numbers
800
893
Leap Years
781844
848
566914
805
785
Leyland Numbers
295
Lucky Tickets
270
Morse Decoder
144
Morse Encoder
183
Niven Numbers
977
921
Odious Numbers
797
784
Ordinal Numbers
914
Pangram Grep
Pascal’s Triangle
757
Pernicious Numbers
671
767
Prime Numbers
972
835
Quine
967863492942685556916488904576867942947535479679449947417858
Rule 110
216
Seven Segment
183
Spelling Numbers
385
United States
λ
502
239
161492176159172
π
767
τ
745
φ
68
√2
71
𝑒
68