12 Days of Christmas
291st
99 Bottles of Beer
472nd
Abundant Numbers
271st
Arabic to Roman
272nd
Christmas Trees
423rd
Collatz
690th
Divisors
486th
Emirp Numbers
390th
Evil Numbers
489th
Fibonacci
462nd1,394th
Fizz Buzz
58th
Foo Fizz Buzz Bar
1st
Happy Numbers
470th
Leap Years
220th
Niven Numbers
402nd
Odious Numbers
298th
Ordinal Numbers
157th
Pangram Grep
338th
Pascal’s Triangle
191st
Pernicious Numbers
270th
Prime Numbers
246th
Prime Numbers (Long)
233rd
Quine
72nd
Recamán
278th
Roman to Arabic
196th
Seven Segment
284th
Spelling Numbers
59th
Time Distance
106th
π
488th
φ
174th
√2
221st