n | a(n) |
---|---|
1 | 4 |
2 | 11 |
3 | 40 |
4 | 227 |
5 | 2338 |
6 | 30071 |
7 | 510568 |
8 | 9699767 |
9 | 223092970 |
10 | 6469693359 |
11 | 200560490290 |
12 | 7420738135007 |
13 | 304250263527448 |
14 | 13082761331670311 |
15 | 614889782588491738 |
16 | 32589158477190045111 |
17 | 1922760350154212639510 |
18 | 117288381359406970983771 |
19 | 7858321551080267055879658 |
[4,11,40,227,2338,30071,510568,9699767,223092970, 6469693359,200560490290,7420738135007, 304250263527448,13082761331670311, 614889782588491738,32589158477190045111, 1922760350154212639510,117288381359406970983771, 7858321551080267055879658] |