Abundant Numbers
11th
28th
25th
9th
187th
21st
12th
626th
22nd
Abundant Numbers (Long)
12th
31st
20th
10th
88th
16th
11th
285th
14th
Collatz
10th
32nd
27th
13th
175th
23rd
9th
270th
9th
Diamonds
18th
15th
4th
7th
41st
9th
Divisors
11th
48th
23rd
16th
309th
69th
17th
1,059th
44th
Evil Numbers
6th
24th
28th
9th
47th
3rd
1st
1st
7th
Evil Numbers (Long)
6th
31st
26th
7th
52nd
13th
10th
29th
6th
Farey Sequence
8th
3rd
Fibonacci
14th
54th
17th
256th
83rd
3rd
712th
29th
Fizz Buzz
21st
42nd
49th
9th
935th
77th
8th
1,247th
37th
Gijswijt’s Sequence
5th
16th
4th
3rd
21st
5th
6th
46th
6th
Happy Numbers
7th
21st
13th
120th
23rd
9th
Happy Numbers (Long)
5th
24th
22nd
9th
63rd
15th
9th
162nd
9th
Leap Years
6th
28th
21st
6th
167th
16th
4th
131st
7th
Niven Numbers
10th
31st
29th
12th
162nd
26th
1st
183rd
1st
Niven Numbers (Long)
12th
34th
25th
12th
91st
13th
3rd
258th
3rd
Odious Numbers
6th
24th
29th
9th
3rd
1st
1st
7th
Odious Numbers (Long)
5th
23rd
26th
7th
49th
14th
9th
1st
6th
Pascal’s Triangle
7th
33rd
12th
7th
109th
13th
7th
381st
11th
Pernicious Numbers
24th
23rd
1st
49th
12th
Pernicious Numbers (Long)
7th
23rd
11th
6th
40th
11th
2nd
54th
9th
Prime Numbers
9th
36th
33rd
13th
174th
29th
14th
439th
25th
Prime Numbers (Long)
11th
26th
21st
9th
85th
21st
7th
127th
11th
Sierpiński Triangle
3rd
18th
6th
4th
11th
13th
4th
51st
5th