n | a(n) |
---|---|
3 | 1 |
4 | 2 |
5 | 8 |
6 | 16 |
7 | 52 |
8 | 104 |
9 | 319 |
10 | 635 |
11 | 1910 |
12 | 3786 |
13 | 11304 |
14 | 22344 |
15 | 66514 |
16 | 131264 |
17 | 390266 |
18 | 769578 |
19 | 2286996 |
20 | 4508580 |
21 | 13397075 |
22 | 26412001 |
23 | 78489235 |
24 | 154773696 |
25 | 460030947 |
26 | 907432695 |
27 | 2697786052 |
28 | 5323519838 |
29 | 15830906756 |
30 | 31251588060 |
[1,2,8,16,52,104,319,635,1910,3786,11304,22344, 66514,131264,390266,769578,2286996,4508580, 13397075,26412001,78489235,154773696,460030947, 907432695,2697786052,5323519838,15830906756, 31251588060] |