12 Days of Christmas
23rd
99 Bottles of Beer
11th
Abundant Numbers
7th
Abundant Numbers (Long)
6th
Arabic to Roman
1st
Arithmetic Numbers
9th
Arrows
7th
Ascending Primes
7th
ASCII Table
12th
Card Number Validation
8th
Catalan Numbers
1st
Catalan’s Constant
9th
Christmas Trees
9th
Collatz
10th
Cubes
7th
Day of Week
6th
Diamonds
9th
Divisors
12th
Emirp Numbers
22nd
Emirp Numbers (Long)
6th
79th
Evil Numbers
1st
Evil Numbers (Long)
1st
Farey Sequence
13th
Fibonacci
32nd
Fizz Buzz
51st
1st
561st
Foo Fizz Buzz Bar
9th
99th
Fractions
11th
Gijswijt’s Sequence
128th
Happy Numbers
27th
Happy Numbers (Long)
13th
Intersection
8th
Inventory Sequence
8th
ISBN
10th
Jacobi Symbol
7th
Kolakoski Constant
10th
Kolakoski Sequence
9th
Leap Years
13th
Levenshtein Distance
7th
Leyland Numbers
9th
Look and Say
8th
Lucky Numbers
11th
Morse Decoder
6th
Morse Encoder
5th
N Queens
5th
Niven Numbers
26th
Niven Numbers (Long)
10th
Number Spiral
8th
Odious Numbers
1st
Odious Numbers (Long)
1st
Ordinal Numbers
12th
Pangram Grep
4th
Pascal’s Triangle
18th
Pernicious Numbers
23rd
Pernicious Numbers (Long)
14th
Prime Numbers
26th
Prime Numbers (Long)
9th
Quine
1st206th25th202nd148th56th80th22nd25th1st75th57th74th303rd1st137th21st25th1st63rd42nd71st13th46th
Recamán
10th
Reverse Polish Notation
7th
Roman to Arabic
7th
Seven Segment
8th
Sierpiński Triangle
8th
Smith Numbers
5th
Spelling Numbers
1st
Star Wars Opening Crawl
5th
Time Distance
5th
Tongue-twisters
10th
Transpose Sentence
6th
United States
7th
Van Eck Sequence
7th
λ
13th
π
20th
τ
19th
φ
25th
√2
11th
𝑒
18th