12 Days of Christmas
81st
99 Bottles of Beer
744th
Abundant Numbers
88th34th
65th1,274th417th
Abundant Numbers (Long)
31st
238th
Arithmetic Numbers
291st
Ascending Primes
6th
ASCII Table
703rd
Calendar
223rd
Card Number Validation
371st
Catalan Numbers
26th
Collatz
804th
Diamonds
336th
Divisors
493rd1st
28th
Emirp Numbers
686th5th
Emirp Numbers (Long)
9th
Evil Numbers
1,272nd
Evil Numbers (Long)
846th
Factorial Factorisation
160th
Farey Sequence
52nd
Fibonacci
2,287th
2,507th4,160th461st374th
2,016th
Fizz Buzz
3,738th4,588th
Foo Fizz Buzz Bar
1,461st
Forsyth–Edwards Notation
27th
Fractions
425th
Game of Life
79th
Gijswijt’s Sequence
220th
Happy Numbers
1,017th
609th
560th
Happy Numbers (Long)
612th
174th
ISBN
130th
744th
Kolakoski Sequence
30th
Leap Years
1,192nd
Leyland Numbers
156th
Look and Say
529th
Niven Numbers
1,655th
2,003rd1,593rd719th
1,545th
Niven Numbers (Long)
1,482nd307th75th
Number Spiral
32nd
Odious Numbers
406th
Odious Numbers (Long)
293rd
PalindromemordnilaP
52nd
73rd
Pangram Grep
993rd
Pascal’s Triangle
1st
Pernicious Numbers
107th
Pernicious Numbers (Long)
1st
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
1st
644th
727th
3,871st239th
754th
Reverse Polish Notation
544th
ROT13
581st
Rule 110
250th
Scrambled Sort
5th
Smith Numbers
65th
Tic-tac-toe
233rd
Tower of Hanoi
719th
Transpose Sentence
429th
Trinomial Triangle
266th
United States
844th
Vampire Numbers
1,388th
Van Eck Sequence
115th
π
4th
τ
4th
√2
445th
𝑒
1,074th