12 Days of Christmas
31st
15th
39th
99 Bottles of Beer
31st
Abundant Numbers
4th
5th
Abundant Numbers (Long)
5th
1st
90th
Arithmetic Numbers
5th
7th
ASCII Table
12th
Christmas Trees
2nd
💎
19th
Collatz
9th
5th
118th
Diamonds
9th
5th
Divisors
5th1st33rd1st
374th
Emirp Numbers
58th
Emirp Numbers (Long)
33rd
Evil Numbers
8th
7th
143rd
Evil Numbers (Long)
2nd
1st
Fibonacci
9th14th
1st1st1st67th
Fizz Buzz
77th1st
1st
63rd
Foo Fizz Buzz Bar
3rd
2nd
1st
Gijswijt’s Sequence
11th
8th
Inventory Sequence
2nd7th
7th
17th
Kolakoski Sequence
13th
10th
Leap Years
9th
3rd
18th
Look and Say
8th
10th
Lucky Numbers
25th
Niven Numbers
9th1st
1st
51st
Odious Numbers
9th
27th
Odious Numbers (Long)
9th
21st
Ordinal Numbers
14th
9th
Pernicious Numbers
1st
29th
1st
Prime Numbers
11th16th
Prime Numbers (Long)
7th1st
62nd
Recamán
4th
1st
62nd
Sierpiński Triangle
38th
Van Eck Sequence
17th
7th