12 Days of Christmas
837th
99 Bottles of Beer
1,681st
Abundant Numbers
47th142nd
272nd1,206th537th
Abundant Numbers (Long)
26th
219th
Arithmetic Numbers
227th
Ascending Primes
6th
ASCII Table
1,188th
Calendar
203rd
Card Number Validation
351st
Catalan Numbers
14th
Collatz
832nd
Diamonds
353rd
Divisors
210th1st
475th
Emirp Numbers
815th5th
Emirp Numbers (Long)
9th
Evil Numbers
1,182nd
Evil Numbers (Long)
847th
Factorial Factorisation
153rd
Farey Sequence
43rd
Fibonacci
2,656th
2,503rd4,068th390th361st
2,010th
Fizz Buzz
2,686th7,216th
Foo Fizz Buzz Bar
2,180th
Forsyth–Edwards Notation
42nd
Fractions
397th
Game of Life
227th
Gijswijt’s Sequence
197th
Happy Numbers
1,124th
482nd
503rd
Happy Numbers (Long)
508th
174th
ISBN
431st
645th
Kolakoski Sequence
103rd
Leap Years
1,813th
Leyland Numbers
397th
Look and Say
496th
Niven Numbers
1,504th
1,857th1,470th1,424th
1,667th
Niven Numbers (Long)
1,485th256th54th
Number Spiral
32nd
Odious Numbers
369th
Odious Numbers (Long)
295th
PalindromemordnilaP
47th
69th
Pangram Grep
782nd
Pascal’s Triangle
1st
Pernicious Numbers
122nd
Pernicious Numbers (Long)
1st
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
1st
648th
731st
3,895th242nd
758th
Reverse Polish Notation
431st
ROT13
592nd
Rule 110
200th
Scrambled Sort
5th
Smith Numbers
71st
Tic-tac-toe
236th
Tower of Hanoi
735th
Transpose Sentence
348th
Trinomial Triangle
220th
United States
906th
Vampire Numbers
1,376th
Van Eck Sequence
108th
π
155th
τ
225th
√2
620th
𝑒
1,061st