n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 28 |
4 | 130 |
5 | 542 |
6 | 2584 |
7 | 11496 |
8 | 55678 |
9 | 256510 |
10 | 1254108 |
11 | 5903846 |
12 | 29033776 |
13 | 138631022 |
14 | 684430494 |
15 | 3300277738 |
16 | 16338765082 |
17 | 79346440476 |
18 | 393614695616 |
19 | 1921710776096 |
20 | 9547446375432 |
21 | 46802969161876 |
22 | 232795453464222 |
23 | 1144840179066616 |
24 | 5699509516958702 |
25 | 28100203500809862 |
26 | 139994900695963422 |
[1,2,8,28,130,542,2584,11496,55678,256510,1254108, 5903846,29033776,138631022,684430494,3300277738, 16338765082,79346440476,393614695616, 1921710776096,9547446375432,46802969161876, 232795453464222,1144840179066616,5699509516958702, 28100203500809862,139994900695963422] |