n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 10 |
3 | 32 |
4 | 99 |
5 | 299 |
6 | 887 |
7 | 2595 |
8 | 7508 |
9 | 21526 |
10 | 61251 |
11 | 173173 |
12 | 486925 |
13 | 1362627 |
14 | 3797374 |
15 | 10543724 |
16 | 29180067 |
17 | 80521055 |
18 | 221610563 |
19 | 608468451 |
20 | 1667040776 |
21 | 4558234018 |
22 | 12441155715 |
23 | 33900136297 |
24 | 92230468249 |
25 | 250570010499 |
26 | 679844574322 |
27 | 1842280003640 |
[1,3,10,32,99,299,887,2595,7508,21526,61251, 173173,486925,1362627,3797374,10543724,29180067, 80521055,221610563,608468451,1667040776, 4558234018,12441155715,33900136297,92230468249, 250570010499,679844574322,1842280003640] |