n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 6 |
4 | 18 |
5 | 79 |
6 | 463 |
7 | 3396 |
8 | 30073 |
9 | 314037 |
10 | 3796561 |
11 | 52332869 |
12 | 812013163 |
13 | 14029926801 |
14 | 267461387125 |
15 | 5581705418715 |
16 | 126657160962835 |
17 | 3106644875467396 |
18 | 81943115662983569 |
19 | 2313753122033185373 |
20 | 69654973411269008826 |
21 | 2227679407193350385775 |
[1,2,3,6,18,79,463,3396,30073,314037,3796561, 52332869,812013163,14029926801,267461387125, 5581705418715,126657160962835,3106644875467396, 81943115662983569,2313753122033185373, 69654973411269008826,2227679407193350385775] |