n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 7 |
4 | 34 |
5 | 156 |
6 | 635 |
7 | 2966 |
8 | 14327 |
9 | 66047 |
10 | 314700 |
11 | 1560159 |
12 | 7710390 |
13 | 38251395 |
14 | 192549444 |
15 | 974601369 |
16 | 4952273462 |
17 | 25349634715 |
18 | 130414412847 |
19 | 673028519274 |
20 | 3487306501970 |
21 | 18139905710007 |
22 | 94640387701755 |
23 | 495160150021161 |
24 | 2597800048395361 |
25 | 13661957722514619 |
[1,3,7,34,156,635,2966,14327,66047,314700,1560159, 7710390,38251395,192549444,974601369,4952273462, 25349634715,130414412847,673028519274, 3487306501970,18139905710007,94640387701755, 495160150021161,2597800048395361, 13661957722514619] |