n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 18 |
3 | 323 |
4 | 5796 |
5 | 104005 |
6 | 1866294 |
7 | 33489287 |
8 | 600940872 |
9 | 10783446409 |
10 | 193501094490 |
11 | 3472236254411 |
12 | 62306751484908 |
13 | 1118049290473933 |
14 | 20062580477045886 |
15 | 360008399296352015 |
16 | 6460088606857290384 |
17 | 115921586524134874897 |
18 | 2080128468827570457762 |
[0,1,18,323,5796,104005,1866294,33489287, 600940872,10783446409,193501094490,3472236254411, 62306751484908,1118049290473933,20062580477045886, 360008399296352015,6460088606857290384, 115921586524134874897,2080128468827570457762] |