n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 13 |
5 | 35 |
6 | 96 |
7 | 264 |
8 | 719 |
9 | 1914 |
10 | 4888 |
11 | 11583 |
12 | 23540 |
13 | 29907 |
14 | -57120 |
15 | -695742 |
16 | -3938275 |
17 | -18266657 |
18 | -76983710 |
19 | -306116660 |
20 | -1168987469 |
21 | -4327878214 |
22 | -15617536020 |
23 | -55097816085 |
24 | -190320077663 |
25 | -643865817117 |
26 | -2131713980560 |
27 | -6893257768141 |
[1,1,2,5,13,35,96,264,719,1914,4888,11583,23540, 29907,-57120,-695742,-3938275,-18266657,-76983710, -306116660,-1168987469,-4327878214,-15617536020, -55097816085,-190320077663,-643865817117, -2131713980560,-6893257768141] |