n | a(n) |
---|---|
1 | 8 |
2 | 55 |
3 | 549 |
4 | 5280 |
5 | 44403 |
6 | 325008 |
7 | 2685304 |
8 | 27358559 |
9 | 241709752 |
10 | 1870181225 |
11 | 12766175931 |
12 | 138963670560 |
13 | 1291487885997 |
14 | 10519458225072 |
15 | 74032715923371 |
16 | 690521409218881 |
17 | 6773980286782088 |
18 | 57975621715535095 |
19 | 433109386513469096 |
20 | 3345582274543898400 |
[8,55,549,5280,44403,325008,2685304,27358559, 241709752,1870181225,12766175931,138963670560, 1291487885997,10519458225072,74032715923371, 690521409218881,6773980286782088, 57975621715535095,433109386513469096, 3345582274543898400] |