n | a(n) |
---|---|
1 | 0 |
2 | 80 |
3 | 766 |
4 | 4940 |
5 | 29140 |
6 | 167904 |
7 | 927615 |
8 | 5029822 |
9 | 26842413 |
10 | 141506744 |
11 | 738488507 |
12 | 3821661440 |
13 | 19635250935 |
14 | 100265767074 |
15 | 509297332780 |
16 | 2575109743084 |
17 | 12967976929637 |
18 | 65073500707556 |
19 | 325507453206018 |
20 | 1623623692686646 |
[0,80,766,4940,29140,167904,927615,5029822, 26842413,141506744,738488507,3821661440, 19635250935,100265767074,509297332780, 2575109743084,12967976929637,65073500707556, 325507453206018,1623623692686646] |