n | a(n) |
---|---|
1 | 1 |
2 | 25 |
3 | 265 |
4 | 2161 |
5 | 16081 |
6 | 115465 |
7 | 816985 |
8 | 5745121 |
9 | 40294561 |
10 | 282298105 |
11 | 1976795305 |
12 | 13839692881 |
13 | 96884227441 |
14 | 678208723945 |
15 | 4747518463225 |
16 | 33232801429441 |
17 | 232630126566721 |
18 | 1628412435648985 |
19 | 11398891698588745 |
20 | 79792255837258801 |
21 | 558545832702224401 |
[1,25,265,2161,16081,115465,816985,5745121, 40294561,282298105,1976795305,13839692881, 96884227441,678208723945,4747518463225, 33232801429441,232630126566721,1628412435648985, 11398891698588745,79792255837258801, 558545832702224401] |