12 Days of Christmas
864
99 Bottles of Beer
665
Abundant Numbers
738
Arabic to Roman
570
Christmas Trees
670
Collatz
658
Divisors
890
Emirp Numbers
564
Evil Numbers
785
Fibonacci
545
696
Fizz Buzz
976
Foo Fizz Buzz Bar
986
Happy Numbers
523
Leap Years
815
Niven Numbers
746
Odious Numbers
783
Ordinal Numbers
804
Pangram Grep
787
Pascal’s Triangle
862
Pernicious Numbers
686
Prime Numbers
871
Prime Numbers (Long)
679
Quine
946
Recamán
718
Roman to Arabic
571
Seven Segment
494
Spelling Numbers
521
Time Distance
700
π
63
φ
697
√2
707