n | a(n) |
---|---|
1 | 1 |
2 | 13 |
3 | 111 |
4 | 777 |
5 | 5831 |
6 | 40924 |
7 | 279663 |
8 | 1900344 |
9 | 12981261 |
10 | 89115875 |
11 | 612783404 |
12 | 4213804514 |
13 | 28966104726 |
14 | 199059108169 |
15 | 1367802766449 |
16 | 9398558906151 |
17 | 64581809194142 |
18 | 443780394667276 |
19 | 3049505888159977 |
20 | 20955159932737734 |
[1,13,111,777,5831,40924,279663,1900344,12981261, 89115875,612783404,4213804514,28966104726, 199059108169,1367802766449,9398558906151, 64581809194142,443780394667276,3049505888159977, 20955159932737734] |