n | a(n) |
---|---|
5 | 15 |
6 | 72 |
7 | 609 |
8 | 4960 |
9 | 46188 |
10 | 471660 |
11 | 5275941 |
12 | 64146768 |
13 | 842803767 |
14 | 11902900380 |
15 | 179857257960 |
16 | 2895705788736 |
17 | 49491631601635 |
18 | 895010868095256 |
19 | 17074867330880805 |
20 | 342733960299356800 |
21 | 7220616209235766260 |
22 | 159312370008282356844 |
23 | 3673720238903201471593 |
[15,72,609,4960,46188,471660,5275941,64146768, 842803767,11902900380,179857257960,2895705788736, 49491631601635,895010868095256,17074867330880805, 342733960299356800,7220616209235766260, 159312370008282356844,3673720238903201471593] |