n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 2 |
5 | 8 |
6 | 24 |
7 | 62 |
8 | 150 |
9 | 338 |
10 | 738 |
11 | 1568 |
12 | 3282 |
13 | 6780 |
14 | 13904 |
15 | 28288 |
16 | 57342 |
17 | 115812 |
18 | 233426 |
19 | 469656 |
20 | 944000 |
21 | 1895194 |
22 | 3802762 |
23 | 7625328 |
24 | 15284798 |
25 | 30626642 |
26 | 61353084 |
27 | 122872144 |
28 | 246042562 |
29 | 492592948 |
30 | 986089652 |
31 | 1973756116 |
32 | 3950330140 |
33 | 7905541650 |
34 | 15819942048 |
35 | 31655323370 |
[0,0,0,2,8,24,62,150,338,738,1568,3282,6780,13904, 28288,57342,115812,233426,469656,944000,1895194, 3802762,7625328,15284798,30626642,61353084, 122872144,246042562,492592948,986089652, 1973756116,3950330140,7905541650,15819942048, 31655323370] |