n | a(n) |
---|---|
2 | 1 |
3 | 3 |
4 | 54 |
5 | 1830 |
6 | 68175 |
7 | 2604105 |
8 | 72741487 |
9 | 1575681348 |
10 | 32584952460 |
11 | 663445574880 |
12 | 13119864945495 |
13 | 250743317040879 |
14 | 4601891725568592 |
15 | 80821202263252920 |
16 | 1358608769903073690 |
17 | 21985893765384549032 |
18 | 344851090651019364715 |
[1,3,54,1830,68175,2604105,72741487,1575681348, 32584952460,663445574880,13119864945495, 250743317040879,4601891725568592, 80821202263252920,1358608769903073690, 21985893765384549032,344851090651019364715] |