12 Days of Christmas
294th434th
99 Bottles of Beer
149th
Abundant Numbers
669th
Christmas Trees
323rd
Diamonds
354th
Divisors
917th
Emirp Numbers
536th
Evil Numbers
813th
Fibonacci
939th
Fizz Buzz
58th
Foo Fizz Buzz Bar
1st
Fractions
389th
Happy Numbers
463rd
Leap Years
221st
Niven Numbers
478th
Odious Numbers
617th
Ordinal Numbers
393rd
Pangram Grep
464th
Pascal’s Triangle
434th
Prime Numbers
983rd
Prime Numbers (Long)
487th
Recamán
391st
Rock-paper-scissors-Spock-lizard
179th
Roman to Arabic
197th
Seven Segment
363rd
Van Eck Sequence
293rd
π
229th
τ
158th
φ
237th
√2
359th
𝑒
300th