n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 1 |
3 | 2 |
4 | 7 |
5 | 59 |
6 | 616 |
7 | 6992 |
8 | 90847 |
9 | 1352549 |
10 | 22591681 |
11 | 417527582 |
12 | 8465505412 |
13 | 186906393764 |
14 | 4463901355096 |
15 | 114672825810272 |
16 | 3153127461349327 |
17 | 92405864554182329 |
18 | 2875362251645606611 |
19 | 94680648376734042062 |
20 | 3289274269898822961967 |
21 | 120235993277078434540619 |
[1,-1,1,2,7,59,616,6992,90847,1352549,22591681, 417527582,8465505412,186906393764,4463901355096, 114672825810272,3153127461349327, 92405864554182329,2875362251645606611, 94680648376734042062,3289274269898822961967, 120235993277078434540619] |