n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 7 |
3 | 33 |
4 | 191 |
5 | 1153 |
6 | 7295 |
7 | 47617 |
8 | 318463 |
9 | 2170881 |
10 | 15028223 |
11 | 105365505 |
12 | 746651647 |
13 | 5339185153 |
14 | 38478839807 |
15 | 279201841153 |
16 | 2037998419967 |
17 | 14954803494913 |
18 | 110255315877887 |
19 | 816299567480833 |
20 | 6066679566041087 |
[1,1,7,33,191,1153,7295,47617,318463,2170881, 15028223,105365505,746651647,5339185153, 38478839807,279201841153,2037998419967, 14954803494913,110255315877887,816299567480833, 6066679566041087] |