n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 11 |
3 | 52 |
4 | 309 |
5 | 2221 |
6 | 18703 |
7 | 180216 |
8 | 1952457 |
9 | 23466223 |
10 | 309577971 |
11 | 4444537868 |
12 | 68948023741 |
13 | 1148825560377 |
14 | 20455144724407 |
15 | 387479309532976 |
16 | 7778881684953873 |
17 | 164942847995071611 |
18 | 3682885668837002587 |
19 | 86359724102207331876 |
20 | 2121535102985378053061 |
21 | 54482075844410029721893 |
22 | 1459677302947807284662751 |
[1,3,11,52,309,2221,18703,180216,1952457,23466223, 309577971,4444537868,68948023741,1148825560377, 20455144724407,387479309532976,7778881684953873, 164942847995071611,3682885668837002587, 86359724102207331876,2121535102985378053061, 54482075844410029721893,1459677302947807284662751] |