n | a(n) |
---|---|
3 | 0 |
4 | 2 |
5 | 2 |
6 | 3 |
7 | 8 |
8 | 16 |
9 | 38 |
10 | 93 |
11 | 226 |
12 | 536 |
13 | 1300 |
14 | 3288 |
15 | 8030 |
16 | 19994 |
17 | 51284 |
18 | 130110 |
19 | 333128 |
20 | 862656 |
21 | 2238494 |
22 | 5849827 |
23 | 15347500 |
24 | 40380267 |
25 | 106781828 |
26 | 282965437 |
27 | 750949846 |
28 | 1998509165 |
29 | 5327291162 |
30 | 14217409545 |
31 | 38009367066 |
[0,2,2,3,8,16,38,93,226,536,1300,3288,8030,19994, 51284,130110,333128,862656,2238494,5849827, 15347500,40380267,106781828,282965437,750949846, 1998509165,5327291162,14217409545,38009367066] |