n | a(n) |
---|---|
0 | 3 |
1 | 18 |
2 | 126 |
3 | 972 |
4 | 7938 |
5 | 67068 |
6 | 578826 |
7 | 5065092 |
8 | 44732898 |
9 | 397517868 |
10 | 3547309626 |
11 | 31744033812 |
12 | 284606850258 |
13 | 2554928116668 |
14 | 22955161402026 |
15 | 206361331428132 |
16 | 1855841341806018 |
17 | 16694108488251468 |
18 | 150196195641088026 |
[3,18,126,972,7938,67068,578826,5065092,44732898, 397517868,3547309626,31744033812,284606850258, 2554928116668,22955161402026,206361331428132, 1855841341806018,16694108488251468, 150196195641088026] |