n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 28 |
6 | 84 |
7 | 260 |
8 | 816 |
9 | 2576 |
10 | 8152 |
11 | 25824 |
12 | 81840 |
13 | 259408 |
14 | 822304 |
15 | 2606720 |
16 | 8263456 |
17 | 26195776 |
18 | 83042752 |
19 | 263252544 |
20 | 834533120 |
21 | 2645541888 |
22 | 8386596224 |
23 | 26586234880 |
24 | 84280663296 |
25 | 267176990976 |
26 | 846974167552 |
27 | 2684981361664 |
[1,2,4,10,28,84,260,816,2576,8152,25824,81840, 259408,822304,2606720,8263456,26195776,83042752, 263252544,834533120,2645541888,8386596224, 26586234880,84280663296,267176990976,846974167552, 2684981361664] |