n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 15 |
5 | 42 |
6 | 106 |
7 | 280 |
8 | 702 |
9 | 1778 |
10 | 4398 |
11 | 10910 |
12 | 26678 |
13 | 65172 |
14 | 157656 |
15 | 380524 |
16 | 912846 |
17 | 2185906 |
18 | 5216588 |
19 | 12433166 |
20 | 29564544 |
21 | 70189672 |
22 | 166245574 |
23 | 392909240 |
24 | 926290066 |
25 | 2178881218 |
26 | 5114469170 |
27 | 11985221654 |
28 | 28049398284 |
29 | 65588182636 |
30 | 153277006212 |
31 | 358073997608 |
[1,2,6,15,42,106,280,702,1778,4398,10910,26678, 65172,157656,380524,912846,2185906,5216588, 12433166,29564544,70189672,166245574,392909240, 926290066,2178881218,5114469170,11985221654, 28049398284,65588182636,153277006212,358073997608] |