12 Days of Christmas
862
Abundant Numbers
728
Christmas Trees
814
Diamonds
318
Divisors
984
Emirp Numbers
608
Evil Numbers
786
Fibonacci
935
Fizz Buzz
945
Happy Numbers
475
Leap Years
757
Leyland Numbers
607
Morse Decoder
437
Morse Encoder
486
Niven Numbers
942
Odious Numbers
784
Ordinal Numbers
774
Pangram Grep
911
Pascal’s Triangle
975
Pernicious Numbers
686
Prime Numbers
644
Recamán
806
Rock-paper-scissors-Spock-lizard
749
Seven Segment
611
Sierpiński Triangle
736
φ
783
√2
687
𝑒
653