n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 27 |
3 | 159 |
4 | 1025 |
5 | 7221 |
6 | 55307 |
7 | 457631 |
8 | 4065569 |
9 | 38566021 |
10 | 388757083 |
11 | 4146851583 |
12 | 46636281185 |
13 | 551163837685 |
14 | 6825500514059 |
15 | 88341860285631 |
16 | 1192267628956353 |
17 | 16743728349797765 |
18 | 244221140242647579 |
19 | 3693367920926321375 |
20 | 57821628101627115329 |
[1,5,27,159,1025,7221,55307,457631,4065569, 38566021,388757083,4146851583,46636281185, 551163837685,6825500514059,88341860285631, 1192267628956353,16743728349797765, 244221140242647579,3693367920926321375, 57821628101627115329] |