n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 37 |
3 | 259 |
4 | 1297 |
5 | 9079 |
6 | 47989 |
7 | 335923 |
8 | 1679617 |
9 | 11757319 |
10 | 62145829 |
11 | 435020803 |
12 | 2178463249 |
13 | 15249242743 |
14 | 80603140213 |
15 | 564221981491 |
16 | 2821109907457 |
17 | 19747769352199 |
18 | 104381066575909 |
19 | 730667466031363 |
20 | 3658979549971729 |
[1,7,37,259,1297,9079,47989,335923,1679617, 11757319,62145829,435020803,2178463249, 15249242743,80603140213,564221981491, 2821109907457,19747769352199,104381066575909, 730667466031363,3658979549971729] |