n | a(n) |
---|---|
1 | 2 |
2 | 18 |
3 | 128 |
4 | 1590 |
5 | 19002 |
6 | 353304 |
7 | 6591776 |
8 | 154083654 |
9 | 3878583770 |
10 | 110647791078 |
11 | 3423740752764 |
12 | 116116072618104 |
13 | 4240251502692142 |
14 | 166761491097360240 |
15 | 7006327371058071648 |
16 | 313637735782416564806 |
17 | 14890324713956395361406 |
18 | 747610406539465959084870 |
[2,18,128,1590,19002,353304,6591776,154083654, 3878583770,110647791078,3423740752764, 116116072618104,4240251502692142, 166761491097360240,7006327371058071648, 313637735782416564806,14890324713956395361406, 747610406539465959084870] |