n | a(n) |
---|---|
1 | 1 |
2 | 18 |
3 | 307 |
4 | 5220 |
5 | 88741 |
6 | 1508598 |
7 | 25646167 |
8 | 435984840 |
9 | 7411742281 |
10 | 125999618778 |
11 | 2141993519227 |
12 | 36413889826860 |
13 | 619036127056621 |
14 | 10523614159962558 |
15 | 178901440719363487 |
16 | 3041324492229179280 |
17 | 51702516367896047761 |
[1,18,307,5220,88741,1508598,25646167,435984840, 7411742281,125999618778,2141993519227, 36413889826860,619036127056621,10523614159962558, 178901440719363487,3041324492229179280, 51702516367896047761] |