12 Days of Christmas
814
Abundant Numbers
761
Arabic to Roman
620
Christmas Trees
721
Cubes
505
Diamonds
644
Divisors
1,000
Emirp Numbers
613
Evil Numbers
8741,000
Fibonacci
870973
Fizz Buzz
983
Happy Numbers
729
Leap Years
827
Morse Decoder
587
Morse Encoder
636
Niven Numbers
963978
Odious Numbers
8831,000
Ordinal Numbers
931
Pangram Grep
774
Pascal’s Triangle
964
Pernicious Numbers
615
Prime Numbers
889
Quine
969
Rock-paper-scissors-Spock-lizard
687
Roman to Arabic
458
Rule 110
387
Seven Segment
730
Sierpiński Triangle
744
Spelling Numbers
382
United States
449
φ
716
√2
721