12 Days of Christmas
388th
99 Bottles of Beer
538th
Abundant Numbers
343rd
Arabic to Roman
308th
Christmas Trees
476th
Collatz
764th
Divisors
542nd
Emirp Numbers
431st
Evil Numbers
531st
Fibonacci
498th1,474th
Fizz Buzz
237th
Foo Fizz Buzz Bar
149th
Happy Numbers
508th
Leap Years
241st
Niven Numbers
441st
Odious Numbers
332nd
Ordinal Numbers
198th
Pangram Grep
376th
Pascal’s Triangle
208th
Pernicious Numbers
303rd
Prime Numbers
279th
Prime Numbers (Long)
282nd
Quine
90th
Recamán
312th
Roman to Arabic
225th
Seven Segment
312th
Spelling Numbers
101st
Time Distance
132nd
π
530th
φ
214th
√2
282nd