n | a(n) |
---|---|
1 | 1 |
2 | -2 |
3 | 11 |
4 | -28 |
5 | 81 |
6 | -234 |
7 | 739 |
8 | -2216 |
9 | 6545 |
10 | -19594 |
11 | 59139 |
12 | -177408 |
13 | 531181 |
14 | -1593614 |
15 | 4783799 |
16 | -14351032 |
17 | 43044597 |
18 | -129133854 |
19 | 387426799 |
20 | -1162281332 |
21 | 3486765521 |
22 | -10460293354 |
23 | 31381119459 |
24 | -94143358440 |
25 | 282429356977 |
26 | -847288080362 |
27 | 2541866366171 |
[1,-2,11,-28,81,-234,739,-2216,6545,-19594,59139, -177408,531181,-1593614,4783799,-14351032, 43044597,-129133854,387426799,-1162281332, 3486765521,-10460293354,31381119459,-94143358440, 282429356977,-847288080362,2541866366171] |