n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 22 |
5 | 59 |
6 | 160 |
7 | 431 |
8 | 1164 |
9 | 3140 |
10 | 8474 |
11 | 22864 |
12 | 61697 |
13 | 166476 |
14 | 449210 |
15 | 1212113 |
16 | 3270684 |
17 | 8825376 |
18 | 23813776 |
19 | 64257396 |
20 | 173387612 |
21 | 467856828 |
22 | 1262431711 |
23 | 3406456212 |
24 | 9191739970 |
25 | 24802339472 |
26 | 66924874539 |
27 | 180585336876 |
28 | 487278670744 |
29 | 1314838220172 |
[1,1,3,8,22,59,160,431,1164,3140,8474,22864,61697, 166476,449210,1212113,3270684,8825376,23813776, 64257396,173387612,467856828,1262431711, 3406456212,9191739970,24802339472,66924874539, 180585336876,487278670744,1314838220172] |