12 Days of Christmas
6th
221st
24 Game
4th
99 Bottles of Beer
141st
6th
528th
9th11th
Abundant Numbers
308th
13th
170th
12th
Abundant Numbers (Long)
157th
9th
122nd
Arabic to Roman
8th
Arithmetic Numbers
86th
17th
17th
71st
Ascending Primes
9th5th
ASCII Table
384th
6th
brainfuck
101st
359th
Card Number Validation
139th
Catalan Numbers
25th
225th
9th5th
Catalan’s Constant
15th
7th
21st
11th
8th
6th
7th
6th
4th9th
Christmas Trees
16th
10th
28th
2nd
818th
32nd8th
Collatz
22nd18th
35th
29th
25th58th
244th
23rd
6th
11th
CSS Colors
10th
Cubes
15th
Day of Week
159th
Diamonds
11th
46th
6th
91st
9th
Divisors
28th
449th53rd
4th
118th
12th
13th
Emirp Numbers
20th
33rd
13th39th
634th
6th
Emirp Numbers (Long)
323rd
Emojify
6th
72nd
Evil Numbers
27th
44th
29th
611th
15th
11th
Evil Numbers (Long)
21st
17th
370th
Factorial Factorisation
16th
Farey Sequence
19th
19th
216th
Fibonacci
510th
56th
7th
124th
32nd
1st
124th
79th
67th46th
Fizz Buzz
86th
750th
44th
1st151st
9th
367th
212th
43rd366th
49th21st64th46th
Foo Fizz Buzz Bar
864th
Gijswijt’s Sequence
11th
Happy Numbers
9th
7th
Happy Numbers (Long)
379th
Inventory Sequence
239th
Kolakoski Constant
8th
42nd
12th
15th
14th17th
147th
12th
7th
9th4th
Kolakoski Sequence
39th
9th
Leap Years
10th
379th
16th
Leyland Numbers
24th
9th
9th7th
ln 2
31st
Look and Say
25th
14th
11th
9th
Lucky Numbers
250th
Medal Tally
73rd
Morse Decoder
14th
160th
Morse Encoder
13th
Niven Numbers
14th
25th
47th
67th
15th
Niven Numbers (Long)
11th
472nd
Number Spiral
195th
Odious Numbers
1st
28th
304th
10th
Odious Numbers (Long)
1st
15th
223rd
Pangram Grep
3rd
Pascal’s Triangle
36th
35th
9th
Pernicious Numbers
1st
639th
10th
Pernicious Numbers (Long)
1st
276th
6th
Polyominoes
84th
Prime Numbers
1st
326th
24th
506th
122nd
22nd11th
Prime Numbers (Long)
1st
263rd
68th
Quine
137th
1st
72nd
Recamán
9th
9th
Reverse Polish Notation
246th
Rijndael S-box
20th
ROT13
154th
Seven Segment
6th
Sierpiński Triangle
11th15th13th17th
73rd40th41st15th11th10th
19th21st19th11th18th11th
28th12th32nd16th15th36th118th22nd15th27th18th17th11th23rd28th28th9th331st14th33rd50th34th8th
12th16th10th
11th7th15th
Smith Numbers
9th
Sudoku
128th
Tongue-twisters
18th
243rd
8th
Tower of Hanoi
4th
Trinomial Triangle
13th
United States
12th
342nd
Vampire Numbers
5th
Van Eck Sequence
48th
16th
9th
γ
17th
5th
λ
12th
70th50th
9th
27th12th
27th
15th
16th
20th
12th
12th21st
152nd
16th34th18th
12th8th
10th6th
π
131st
196th76th
42nd
402nd
6th
τ
9th
6th
φ
15th41st
37th15th
73rd
39th22nd
355th
5th
√2
38th
6th
𝑒
29th13th22nd9th84th71st
15th
50th32nd16th34th13th26th
16th
37th
9th51st113th74th
37th12th21st10th41st26th46th13th405th94th15th67th25th
27th8th12th11th6th11th7th12th