n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 8 |
4 | 18 |
5 | 48 |
6 | 110 |
7 | 260 |
8 | 586 |
9 | 1320 |
10 | 2918 |
11 | 6412 |
12 | 13954 |
13 | 30192 |
14 | 64926 |
15 | 138964 |
16 | 296122 |
17 | 628664 |
18 | 1330134 |
19 | 2805916 |
20 | 5903090 |
21 | 12388736 |
22 | 25942542 |
23 | 54215268 |
24 | 113090858 |
25 | 235502408 |
26 | 489646150 |
27 | 1016575020 |
28 | 2107715426 |
29 | 4364561680 |
30 | 9027384958 |
31 | 18651293172 |
32 | 38495632794 |
[1,2,8,18,48,110,260,586,1320,2918,6412,13954, 30192,64926,138964,296122,628664,1330134,2805916, 5903090,12388736,25942542,54215268,113090858, 235502408,489646150,1016575020,2107715426, 4364561680,9027384958,18651293172,38495632794] |