n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 19 |
4 | 89 |
5 | 406 |
6 | 1913 |
7 | 9073 |
8 | 43505 |
9 | 209971 |
10 | 1019390 |
11 | 4971781 |
12 | 24343037 |
13 | 119579006 |
14 | 589050663 |
15 | 2908727839 |
16 | 14393759457 |
17 | 71360342129 |
18 | 354372852011 |
19 | 1762416036422 |
20 | 8776797353574 |
21 | 43761058841638 |
22 | 218431753457637 |
23 | 1091385769314272 |
24 | 5458068218285909 |
25 | 27319061357620056 |
[1,1,5,19,89,406,1913,9073,43505,209971,1019390, 4971781,24343037,119579006,589050663,2908727839, 14393759457,71360342129,354372852011, 1762416036422,8776797353574,43761058841638, 218431753457637,1091385769314272,5458068218285909, 27319061357620056] |