n | a(n) |
---|---|
0 | 1 |
1 | 8 |
2 | 46 |
3 | 242 |
4 | 1234 |
5 | 6218 |
6 | 31186 |
7 | 156122 |
8 | 780994 |
9 | 3905738 |
10 | 19530226 |
11 | 97654202 |
12 | 488277154 |
13 | 2441398058 |
14 | 12207014866 |
15 | 61035123482 |
16 | 305175715714 |
17 | 1525878775178 |
18 | 7629394269106 |
19 | 38146972131962 |
20 | 190734862232674 |
[1,8,46,242,1234,6218,31186,156122,780994,3905738, 19530226,97654202,488277154,2441398058, 12207014866,61035123482,305175715714, 1525878775178,7629394269106,38146972131962, 190734862232674] |