n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 5 |
4 | 27 |
5 | 99 |
6 | 307 |
7 | 867 |
8 | 2307 |
9 | 5891 |
10 | 14595 |
11 | 35331 |
12 | 83971 |
13 | 196611 |
14 | 454659 |
15 | 1040387 |
16 | 2359299 |
17 | 5308419 |
18 | 11862019 |
19 | 26345475 |
20 | 58195971 |
21 | 127926275 |
22 | 279969795 |
23 | 610271235 |
24 | 1325400067 |
25 | 2868903939 |
26 | 6190792707 |
27 | 13321109507 |
28 | 28588376067 |
29 | 61203283971 |
30 | 130728067075 |
31 | 278636003331 |
32 | 592705486851 |
33 | 1258425417731 |
[0,0,5,27,99,307,867,2307,5891,14595,35331,83971, 196611,454659,1040387,2359299,5308419,11862019, 26345475,58195971,127926275,279969795,610271235, 1325400067,2868903939,6190792707,13321109507, 28588376067,61203283971,130728067075,278636003331, 592705486851,1258425417731] |