n | a(n) |
---|---|
1 | 7 |
2 | 49 |
3 | 241 |
4 | 1171 |
5 | 5917 |
6 | 30067 |
7 | 151981 |
8 | 767377 |
9 | 3877045 |
10 | 19592047 |
11 | 98998267 |
12 | 500220187 |
13 | 2527540111 |
14 | 12771357967 |
15 | 64532102977 |
16 | 326072549563 |
17 | 1647603384079 |
18 | 8325132536305 |
19 | 42065847045655 |
20 | 212553428463613 |
21 | 1074005709153595 |
[7,49,241,1171,5917,30067,151981,767377,3877045, 19592047,98998267,500220187,2527540111, 12771357967,64532102977,326072549563, 1647603384079,8325132536305,42065847045655, 212553428463613,1074005709153595] |