12 Days of Christmas
872Abundant Numbers
754Christmas Trees
907Diamonds
324Divisors
1,000Emirp Numbers
630Evil Numbers
800Fibonacci
947Fizz Buzz
951Happy Numbers
484Leap Years
768Leyland Numbers
624Morse Decoder
459Morse Encoder
496Niven Numbers
957Odious Numbers
800Ordinal Numbers
794Pangram Grep
935Pascal’s Triangle
1,000Pernicious Numbers
702Prime Numbers
656Recamán
838Rock-paper-scissors-Spock-lizard
758Seven Segment
631Sierpiński Triangle
763φ
803√2
700𝑒
667