12 Days of Christmas
237th
Abundant Numbers
18th
58th
Abundant Numbers (Long)
17th
36th
Arithmetic Numbers
40th
Arrows
42nd
Ascending Primes
36th
ASCII Table
120th
Catalan Numbers
16th
63rd
Catalan’s Constant
47th
Christmas Trees
276th
Collatz
4th
CSS Colors
187th
Diamonds
109th
Divisors
15th
1st
Emirp Numbers
10th
Emirp Numbers (Long)
9th
Emojify
148th
Evil Numbers
21st
98th
69thEvil Numbers (Long)
19th
29th
Farey Sequence
42nd
Fibonacci
26th
24th
178th
1st
77th
61stFizz Buzz
14th
28th
Foo Fizz Buzz Bar
18th
10th
Forsyth–Edwards Notation
38th
Fractions
95th
67th
Game of Life
50th
Gijswijt’s Sequence
57th
Happy Numbers
7th
154th
Happy Numbers (Long)
7th
65th
Hexdump
52nd
Intersection
85th
Inventory Sequence
52nd
ISBN
20th
Kolakoski Constant
63rd
Kolakoski Sequence
98th
Leap Years
12th
63rd
12th
Leyland Numbers
1st
ln 2
8th
72nd
Look and Say
94th
Lucky Numbers
26th
Lucky Tickets
49th
Maze
5th
Medal Tally
69th
Niven Numbers
23rd
50th
Niven Numbers (Long)
21st
132nd
Odious Numbers
17th
70th
Odious Numbers (Long)
21st
55th
Ordinal Numbers
47th
Pangram Grep
20th
78th
Pascal’s Triangle
27th
Pernicious Numbers
114th
Pernicious Numbers (Long)
55th
Prime Numbers
38th
10th
30th
1st
7thPrime Numbers (Long)
17th
1st
Quine
1st
52nd
Recamán
150th
Reverse Polish Notation
1st
81st
Rock-paper-scissors-Spock-lizard
97th
Seven Segment
143rd
Smith Numbers
62nd
Vampire Numbers
34th
Van Eck Sequence
112th
π
8th
37th
τ
41st
φ
9th
51st
√2
189th
𝑒
119th