n | a(n) |
---|---|
0 | 1 |
1 | -3 |
2 | 13 |
3 | -48 |
4 | 181 |
5 | -675 |
6 | 2521 |
7 | -9408 |
8 | 35113 |
9 | -131043 |
10 | 489061 |
11 | -1825200 |
12 | 6811741 |
13 | -25421763 |
14 | 94875313 |
15 | -354079488 |
16 | 1321442641 |
17 | -4931691075 |
18 | 18405321661 |
19 | -68689595568 |
20 | 256353060613 |
21 | -956722646883 |
22 | 3570537526921 |
23 | -13325427460800 |
24 | 49731172316281 |
[1,-3,13,-48,181,-675,2521,-9408,35113,-131043, 489061,-1825200,6811741,-25421763,94875313, -354079488,1321442641,-4931691075,18405321661, -68689595568,256353060613,-956722646883, 3570537526921,-13325427460800,49731172316281] |