Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 4 |
8 | 5 |
9 | 5 |
10 | 4 |
11 | 10 |
12 | 14 |
13 | 21 |
14 | 14 |
15 | 10 |
16 | 20 |
17 | 30 |
18 | 58 |
19 | 58 |
20 | 30 |
21 | 20 |
22 | 35 |
23 | 55 |
24 | 125 |
25 | 236 |
26 | 125 |
27 | 55 |
28 | 35 |
29 | 56 |
30 | 91 |
31 | 231 |
32 | 720 |
33 | 720 |
34 | 231 |
35 | 91 |
36 | 56 |
37 | 84 |
38 | 140 |
39 | 385 |
40 | 1754 |
41 | 4040 |
42 | 1754 |
43 | 385 |
44 | 140 |
45 | 84 |
46 | 120 |
47 | 204 |
48 | 596 |
49 | 3654 |
50 | 15550 |
51 | 15550 |
52 | 3654 |
53 | 596 |
54 | 204 |
55 | 120 |
[0,0,0,1,1,1,4,5,5,4,10,14,21,14,10,20,30,58,58, 30,20,35,55,125,236,125,55,35,56,91,231,720,720, 231,91,56,84,140,385,1754,4040,1754,385,140,84, 120,204,596,3654,15550,15550,3654,596,204,120] |