Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
3 | 1 |
4 | 1 |
5 | 0 |
6 | 2 |
7 | 0 |
8 | 10 |
9 | 20 |
10 | 100 |
11 | 210 |
12 | 530 |
13 | 974 |
14 | 2548 |
15 | 5654 |
16 | 15378 |
17 | 37662 |
18 | 100702 |
19 | 248970 |
20 | 648082 |
21 | 1625344 |
22 | 4221578 |
23 | 10746294 |
24 | 27964310 |
25 | 72059274 |
26 | 188226426 |
27 | 488925522 |
28 | 1280741934 |
29 | 3346300256 |
30 | 8791335140 |
31 | 23076212174 |
32 | 60806053482 |
[1,1,0,2,0,10,20,100,210,530,974,2548,5654,15378, 37662,100702,248970,648082,1625344,4221578, 10746294,27964310,72059274,188226426,488925522, 1280741934,3346300256,8791335140,23076212174, 60806053482] |