n | a(n) |
---|---|
1 | 1 |
2 | 8 |
3 | 44 |
4 | 257 |
5 | 1481 |
6 | 8560 |
7 | 49448 |
8 | 285669 |
9 | 1650333 |
10 | 9534128 |
11 | 55079528 |
12 | 318199485 |
13 | 1838267585 |
14 | 10619840324 |
15 | 61351790884 |
16 | 354434918989 |
17 | 2047603011865 |
18 | 11829190267612 |
19 | 68338316351600 |
20 | 394796716945057 |
21 | 2280776817922653 |
[1,8,44,257,1481,8560,49448,285669,1650333, 9534128,55079528,318199485,1838267585,10619840324, 61351790884,354434918989,2047603011865, 11829190267612,68338316351600,394796716945057, 2280776817922653] |