n | a(n) |
---|---|
1 | 0 |
2 | 6 |
3 | 22 |
4 | 63 |
5 | 162 |
6 | 381 |
7 | 884 |
8 | 1995 |
9 | 4478 |
10 | 9913 |
11 | 21832 |
12 | 47687 |
13 | 103666 |
14 | 224117 |
15 | 482556 |
16 | 1034819 |
17 | 2211686 |
18 | 4712113 |
19 | 10011696 |
20 | 21217471 |
21 | 44862298 |
22 | 94656621 |
23 | 199333092 |
24 | 419016123 |
25 | 879354062 |
26 | 1842593961 |
27 | 3855445784 |
28 | 8056377655 |
29 | 16813670338 |
[0,6,22,63,162,381,884,1995,4478,9913,21832,47687, 103666,224117,482556,1034819,2211686,4712113, 10011696,21217471,44862298,94656621,199333092, 419016123,879354062,1842593961,3855445784, 8056377655,16813670338] |