n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | -2 |
4 | 5 |
5 | -11 |
6 | 23 |
7 | -48 |
8 | 102 |
9 | -220 |
10 | 476 |
11 | -1024 |
12 | 2184 |
13 | -4624 |
14 | 9744 |
15 | -20480 |
16 | 42976 |
17 | -90048 |
18 | 188352 |
19 | -393216 |
20 | 819328 |
21 | -1704192 |
22 | 3539200 |
23 | -7340032 |
24 | 15203840 |
25 | -31456256 |
26 | 65010688 |
27 | -134217728 |
28 | 276826112 |
29 | -570429440 |
30 | 1174409216 |
[0,0,1,-2,5,-11,23,-48,102,-220,476,-1024,2184, -4624,9744,-20480,42976,-90048,188352,-393216, 819328,-1704192,3539200,-7340032,15203840, -31456256,65010688,-134217728,276826112, -570429440,1174409216] |