12 Days of Christmas
872
Abundant Numbers
739
Christmas Trees
827
Diamonds
324
Divisors
1,000
Emirp Numbers
630
Evil Numbers
800
Fibonacci
947
Fizz Buzz
951
Happy Numbers
484
Leap Years
768
Leyland Numbers
624
Morse Decoder
446
Morse Encoder
496
Niven Numbers
957
Odious Numbers
800
Ordinal Numbers
794
Pangram Grep
935
Pascal’s Triangle
1,000
Pernicious Numbers
702
Prime Numbers
656
Recamán
824
Rock-paper-scissors-Spock-lizard
758
Seven Segment
631
Sierpiński Triangle
750
φ
803
√2
700
𝑒
667