n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 57 |
3 | 369 |
4 | 2481 |
5 | 17049 |
6 | 118377 |
7 | 825729 |
8 | 5771361 |
9 | 40373289 |
10 | 282534297 |
11 | 1977503889 |
12 | 13841818641 |
13 | 96890604729 |
14 | 678227855817 |
15 | 4747575858849 |
16 | 33232973616321 |
17 | 232630643127369 |
18 | 1628413985330937 |
19 | 11398896347634609 |
[1,9,57,369,2481,17049,118377,825729,5771361, 40373289,282534297,1977503889,13841818641, 96890604729,678227855817,4747575858849, 33232973616321,232630643127369,1628413985330937, 11398896347634609] |