n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 43 |
3 | 249 |
4 | 1395 |
5 | 7653 |
6 | 41381 |
7 | 221399 |
8 | 1175027 |
9 | 6196725 |
10 | 32512401 |
11 | 169863147 |
12 | 884318973 |
13 | 4589954619 |
14 | 23761814955 |
15 | 122735222505 |
16 | 632698778835 |
17 | 3255832730565 |
18 | 16728131746145 |
19 | 85826852897675 |
20 | 439793834236745 |
21 | 2251006269442815 |
22 | 11509340056410735 |
23 | 58790764269668805 |
[1,7,43,249,1395,7653,41381,221399,1175027, 6196725,32512401,169863147,884318973,4589954619, 23761814955,122735222505,632698778835, 3255832730565,16728131746145,85826852897675, 439793834236745,2251006269442815, 11509340056410735,58790764269668805] |