n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 27 |
4 | 78 |
5 | 222 |
6 | 618 |
7 | 1686 |
8 | 4512 |
9 | 11856 |
10 | 30624 |
11 | 77856 |
12 | 195072 |
13 | 482304 |
14 | 1178112 |
15 | 2846208 |
16 | 6807552 |
17 | 16134144 |
18 | 37920768 |
19 | 88449024 |
20 | 204865536 |
21 | 471465984 |
22 | 1078591488 |
23 | 2454061056 |
24 | 5555355648 |
25 | 12516851712 |
26 | 28078768128 |
27 | 62732107776 |
28 | 139619991552 |
29 | 309640298496 |
30 | 684409749504 |
31 | 1508036837376 |
32 | 3313030397952 |
[1,3,9,27,78,222,618,1686,4512,11856,30624,77856, 195072,482304,1178112,2846208,6807552,16134144, 37920768,88449024,204865536,471465984,1078591488, 2454061056,5555355648,12516851712,28078768128, 62732107776,139619991552,309640298496, 684409749504,1508036837376,3313030397952] |