n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 24 |
5 | 65 |
6 | 177 |
7 | 481 |
8 | 1308 |
9 | 3555 |
10 | 9664 |
11 | 26269 |
12 | 71406 |
13 | 194103 |
14 | 527625 |
15 | 1434235 |
16 | 3898654 |
17 | 10597641 |
18 | 28807374 |
19 | 78306562 |
20 | 212859305 |
21 | 578611580 |
22 | 1572829344 |
23 | 4275393425 |
24 | 11621724256 |
25 | 31591121861 |
26 | 85873572496 |
27 | 233428571660 |
28 | 634524644587 |
29 | 1724816811090 |
30 | 4688538195006 |
31 | 12744768177522 |
[1,1,3,9,24,65,177,481,1308,3555,9664,26269,71406, 194103,527625,1434235,3898654,10597641,28807374, 78306562,212859305,578611580,1572829344, 4275393425,11621724256,31591121861,85873572496, 233428571660,634524644587,1724816811090, 4688538195006,12744768177522] |