99 Bottles of Beer
246th
Abundant Numbers
12th
Abundant Numbers (Long)
3rd
Arithmetic Numbers
3rd
ASCII Table
25th
Card Number Validation
2nd
Catalan Numbers
1st
Christmas Trees
21st
Collatz
3rd
Cubes
298th
Day of Week
1st
Diamonds
18th
Divisors
1st
Emojify
1st
Evil Numbers
1st
Evil Numbers (Long)
1st
Factorial Factorisation
94th
Fibonacci
1st
Fizz Buzz
1st
Foo Fizz Buzz Bar
1st
Gijswijt’s Sequence
1st
Happy Numbers
1st
Happy Numbers (Long)
7th
Intersection
7th
ISBN
7th
1st
Kolakoski Sequence
21st
Leap Years
157th4th7th
Leyland Numbers
8th
ln 2
1st
Look and Say
282nd
Lucky Numbers
7th
Lucky Tickets
1st
Niven Numbers
1st
Niven Numbers (Long)
1st
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
246th
PalindromemordnilaP
85th
Pangram Grep
1st
Pascal’s Triangle
1st
Pernicious Numbers
1st
Pernicious Numbers (Long)
1st
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
1st
Recamán
8th
Reverse Polish Notation
44th
Rock-paper-scissors-Spock-lizard
9th
Roman to Arabic
1st
SI Units
71st
Smith Numbers
7th
Sudoku (Fill-in)
13th
Transpose Sentence
22nd
Vampire Numbers
9th
Van Eck Sequence
1st
φ
1st
√2
1st
𝑒
1st