n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 9 |
4 | 34 |
5 | 94 |
6 | 368 |
7 | 1131 |
8 | 4466 |
9 | 14468 |
10 | 57356 |
11 | 193200 |
12 | 767664 |
13 | 2650814 |
14 | 10552660 |
15 | 37141229 |
16 | 148040634 |
17 | 528844796 |
18 | 2109494072 |
19 | 7623040680 |
20 | 30426290940 |
21 | 110998813606 |
22 | 443245452212 |
23 | 1629794707352 |
24 | 6510278089072 |
25 | 24096191513060 |
26 | 96278729708172 |
27 | 358370832690704 |
28 | 1432209340089340 |
29 | 5357082370310378 |
[1,1,4,9,34,94,368,1131,4466,14468,57356,193200, 767664,2650814,10552660,37141229,148040634, 528844796,2109494072,7623040680,30426290940, 110998813606,443245452212,1629794707352, 6510278089072,24096191513060,96278729708172, 358370832690704,1432209340089340,5357082370310378] |