12 Days of Christmas
99 Bottles of Beer
10th
Abundant Numbers
15th
32nd
Abundant Numbers (Long)
14th
23rd
Arabic to Roman
7th
Arithmetic Numbers
17th
Arrows
10th
Ascending Primes
7th
ASCII Table
17th
Billiards
5th
Card Number Validation
9th
Catalan Numbers
10th
24th
Catalan’s Constant
7th
Christmas Trees
14th
Collatz
23rd
30th
Cubes
5th
Day of Week
20th
Diamonds
9th
Divisors
Emirp Numbers
13th
49th
Emirp Numbers (Long)
7th
21st
Emojify
6th
Evil Numbers
19th
59th
47th
Evil Numbers (Long)
18th
52nd
21st
Factorial Factorisation
13th
Farey Sequence
12th
Fibonacci
56th59th
57th
154th
Fizz Buzz
21st37th616th489th327th66th59th64th65th38th217th48th1,989th65th
Foo Fizz Buzz Bar
21st
22nd
Fractions
18th
Happy Numbers
21st
27th
Happy Numbers (Long)
18th
17th
Intersection
10th
ISBN
17th
Jacobi Symbol
5th
Kolakoski Constant
4th
Leap Years
24th
49th
Lucky Numbers
9th
Morse Decoder
6th
Morse Encoder
5th
Niven Numbers
31st
42nd
Niven Numbers (Long)
16th
25th
Number Spiral
7th
Odious Numbers
22nd
59th
50th
Odious Numbers (Long)
19th
53rd
22nd
Ordinal Numbers
13th
PalindromemordnilaP
2nd
Pangram Grep
11th
Pascal’s Triangle
12th
Pernicious Numbers
33rd
64th
Pernicious Numbers (Long)
9th
22nd
Prime Numbers
18th
50th
86th
Prime Numbers (Long)
14th
49th
37th
Quine
59th
Recamán
10th
Rijndael S-box
6th
Roman to Arabic
8th
Rule 110
5th
Seven Segment
7th
Sierpiński Triangle
8th
Spelling Numbers
8th
Ten-pin Bowling
6th
Tongue-twisters
5th
Transpose Sentence
United States
Vampire Numbers
4th
π
9th
11th
τ
10th