n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | 1 |
4 | -2 |
5 | 5 |
6 | -12 |
7 | 29 |
8 | -70 |
9 | 169 |
10 | -408 |
11 | 985 |
12 | -2378 |
13 | 5741 |
14 | -13860 |
15 | 33461 |
16 | -80782 |
17 | 195025 |
18 | -470832 |
19 | 1136689 |
20 | -2744210 |
21 | 6625109 |
22 | -15994428 |
23 | 38613965 |
24 | -93222358 |
25 | 225058681 |
26 | -543339720 |
27 | 1311738121 |
28 | -3166815962 |
29 | 7645370045 |
30 | -18457556052 |
31 | 44560482149 |
[1,1,0,1,-2,5,-12,29,-70,169,-408,985,-2378,5741, -13860,33461,-80782,195025,-470832,1136689, -2744210,6625109,-15994428,38613965,-93222358, 225058681,-543339720,1311738121,-3166815962, 7645370045,-18457556052,44560482149] |