n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 0 |
4 | 2 |
5 | 6 |
6 | 46 |
7 | 338 |
8 | 2926 |
9 | 28146 |
10 | 298526 |
11 | 3454434 |
12 | 43286526 |
13 | 583835650 |
14 | 8433987582 |
15 | 129941213186 |
16 | 2127349165822 |
17 | 36889047574274 |
18 | 675548628690430 |
19 | 13030733384956418 |
20 | 264111424634864638 |
21 | 5612437196153963522 |
22 | 124789500579376435198 |
23 | 2897684052921851965442 |
[1,2,0,2,6,46,338,2926,28146,298526,3454434, 43286526,583835650,8433987582,129941213186, 2127349165822,36889047574274,675548628690430, 13030733384956418,264111424634864638, 5612437196153963522,124789500579376435198, 2897684052921851965442] |