12 Days of Christmas
639
Abundant Numbers
710
Christmas Trees
720
Diamonds
533
Divisors
947
Emirp Numbers
509
Evil Numbers
800
Fibonacci
947
Fizz Buzz
869
Happy Numbers
375
Leap Years
768
Leyland Numbers
530
Morse Decoder
343
Morse Encoder
378
Niven Numbers
957
Odious Numbers
800
Ordinal Numbers
647
Pangram Grep
792
Pascal’s Triangle
926
Pernicious Numbers
702
Prime Numbers
656
Recamán
743
Rock-paper-scissors-Spock-lizard
524
Seven Segment
460
Sierpiński Triangle
730
φ
788
√2
700
𝑒
667