n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 23 |
4 | 340 |
5 | 2577 |
6 | 12616 |
7 | 46582 |
8 | 141478 |
9 | 372360 |
10 | 878257 |
11 | 1899356 |
12 | 3828287 |
13 | 7278658 |
14 | 13174305 |
15 | 22863037 |
16 | 38258971 |
17 | 62017867 |
18 | 97750188 |
19 | 150276925 |
20 | 225933542 |
21 | 332927711 |
22 | 481756822 |
23 | 685691568 |
[0,2,23,340,2577,12616,46582,141478,372360,878257, 1899356,3828287,7278658,13174305,22863037, 38258971,62017867,97750188,150276925,225933542, 332927711,481756822,685691568] |