n | a(n) |
---|---|
0 | 2 |
1 | 7 |
2 | 37 |
3 | 223 |
4 | 1297 |
5 | 7789 |
6 | 46663 |
7 | 279941 |
8 | 1679627 |
9 | 10077721 |
10 | 60466181 |
11 | 362797091 |
12 | 2176782371 |
13 | 13060694051 |
14 | 78364164101 |
15 | 470184984667 |
16 | 2821109907503 |
17 | 16926659444771 |
18 | 101559956668421 |
19 | 609359740010513 |
20 | 3656158440062987 |
21 | 21936950640377863 |
22 | 131621703842267239 |
[2,7,37,223,1297,7789,46663,279941,1679627, 10077721,60466181,362797091,2176782371, 13060694051,78364164101,470184984667, 2821109907503,16926659444771,101559956668421, 609359740010513,3656158440062987, 21936950640377863,131621703842267239] |