n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 13 |
3 | 97 |
4 | 181 |
5 | 1351 |
6 | 2521 |
7 | 18817 |
8 | 35113 |
9 | 262087 |
10 | 489061 |
11 | 3650401 |
12 | 6811741 |
13 | 50843527 |
14 | 94875313 |
15 | 708158977 |
16 | 1321442641 |
17 | 9863382151 |
18 | 18405321661 |
19 | 137379191137 |
20 | 256353060613 |
21 | 1913445293767 |
22 | 3570537526921 |
23 | 26650854921601 |
24 | 49731172316281 |
25 | 371198523608647 |
[1,7,13,97,181,1351,2521,18817,35113,262087, 489061,3650401,6811741,50843527,94875313, 708158977,1321442641,9863382151,18405321661, 137379191137,256353060613,1913445293767, 3570537526921,26650854921601,49731172316281, 371198523608647] |