n | a(n) |
---|---|
1 | 2 |
2 | 11 |
3 | 80 |
4 | 591 |
5 | 4492 |
6 | 34859 |
7 | 274834 |
8 | 2194175 |
9 | 17697088 |
10 | 143951359 |
11 | 1179361946 |
12 | 9721994363 |
13 | 80573155210 |
14 | 670916858663 |
15 | 5609929650932 |
16 | 47082821529795 |
17 | 396479220532944 |
18 | 3348822504340655 |
19 | 28363386616346538 |
20 | 240832364304754043 |
21 | 2049614659600342062 |
[2,11,80,591,4492,34859,274834,2194175,17697088, 143951359,1179361946,9721994363,80573155210, 670916858663,5609929650932,47082821529795, 396479220532944,3348822504340655, 28363386616346538,240832364304754043, 2049614659600342062] |