n | a(n) |
---|---|
3 | 1 |
4 | 1 |
5 | 3 |
6 | 9 |
7 | 23 |
8 | 62 |
9 | 169 |
10 | 451 |
11 | 1217 |
12 | 3291 |
13 | 8916 |
14 | 24243 |
15 | 66155 |
16 | 181053 |
17 | 497134 |
18 | 1369064 |
19 | 3780942 |
20 | 10469573 |
21 | 29063361 |
22 | 80867990 |
23 | 225508124 |
24 | 630145449 |
25 | 1764240907 |
26 | 4948365051 |
27 | 13902893423 |
28 | 39124094362 |
29 | 110265280739 |
30 | 311208414556 |
31 | 879523722747 |
32 | 2488832434859 |
[1,1,3,9,23,62,169,451,1217,3291,8916,24243,66155, 181053,497134,1369064,3780942,10469573,29063361, 80867990,225508124,630145449,1764240907, 4948365051,13902893423,39124094362,110265280739, 311208414556,879523722747,2488832434859] |