12 Days of Christmas
8th
231st
24 Game
3rd
4th
99 Bottles of Beer
143rd
8th
552nd
10th11th
Abundant Numbers
316th
13th
183rd
12th
Abundant Numbers (Long)
164th
9th
131st
Arabic to Roman
8th
Arithmetic Numbers
91st
17th
17th
74th
Ascending Primes
9th6th
ASCII Table
401st
6th
brainfuck
104th
372nd
Card Number Validation
154th
Catalan Numbers
26th
239th
9th5th
Catalan’s Constant
15th
7th
21st
11th
11th
6th
6th
7th
6th
4th11th
Christmas Trees
18th
10th
29th
2nd
844th
32nd8th
Collatz
24th20th
42nd
29th
29th60th
259th
23rd
8th
12th
CSS Colors
12th
Cubes
4th
16th
Day of Week
170th
Diamonds
12th
48th
6th
94th
9th
Divisors
33rd
458th55th
4th
125th
12th
14th
Emirp Numbers
20th
34th
13th40th
650th
6th
Emirp Numbers (Long)
340th
Emojify
7th
79th
Evil Numbers
30th
46th
31st
630th
16th
11th
Evil Numbers (Long)
24th
19th
390th
Factorial Factorisation
19th
Farey Sequence
19th
21st
233rd
Fibonacci
516th
61st
7th
127th
32nd
1st
125th
82nd
68th46th
Fizz Buzz
88th
758th
46th
1st152nd
9th
371st
224th
44th368th
50th21st64th46th
Foo Fizz Buzz Bar
892nd
Gijswijt’s Sequence
11th
Happy Numbers
9th
7th
Happy Numbers (Long)
391st
Inventory Sequence
254th
Kolakoski Constant
8th
43rd
12th
15th
15th17th
156th
15th
7th
9th4th
Kolakoski Sequence
39th
9th
Leap Years
12th
398th
16th
Leyland Numbers
25th
9th
9th7th
ln 2
33rd
Look and Say
25th
14th
13th
9th
Lucky Numbers
268th
Medal Tally
81st
Morse Decoder
15th
169th
Morse Encoder
14th
Niven Numbers
16th
25th
47th
71st
16th
Niven Numbers (Long)
12th
490th
Number Spiral
208th
Odious Numbers
1st
30th
320th
10th
Odious Numbers (Long)
1st
16th
233rd
Pangram Grep
3rd
Pascal’s Triangle
38th
35th
9th
Pernicious Numbers
1st
656th
10th
Pernicious Numbers (Long)
1st
288th
6th
Polyominoes
97th
Prime Numbers
1st
337th
24th
522nd
129th
23rd11th
Prime Numbers (Long)
1st
274th
71st
Quine
141st
1st
83rd
Recamán
10th
10th
Reverse Polish Notation
258th
Rijndael S-box
20th
ROT13
160th
Seven Segment
7th
Sierpiński Triangle
11th15th14th18th
75th41st42nd15th12th10th
19th21st19th11th18th11th
28th15th32nd
18th16th36th120th22nd18th28th18th17th11th23rd28th28th9th346th14th33rd52nd35th8th
12th17th10th
11th8th17th
Smith Numbers
9th
Sudoku
135th
Tongue-twisters
8th
20th
252nd
10th
Tower of Hanoi
6th
Trinomial Triangle
14th
United States
12th
351st
Vampire Numbers
4th
Van Eck Sequence
50th
17th
12th
γ
18th
4th
5th
λ
12th
70th51st
9th
28th12th
26th
16th
16th5th
21st
12th
13th21st
159th
19th37th20th
13th8th
10th6th
π
134th
201st79th
45th
415th
6th
τ
9th
6th
φ
15th42nd
37th16th
76th
40th22nd
368th
6th
√2
40th
6th
𝑒
29th15th23rd10th87th73rd
15th
51st33rd16th34th14th27th
17th
38th
20th
9th54th115th77th
38th12th21st10th42nd26th49th13th418th98th16th71st27th
27th9th12th13th6th11th7th14th