n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 19 |
3 | 109 |
4 | 811 |
5 | 5581 |
6 | 39259 |
7 | 274429 |
8 | 1921771 |
9 | 13450861 |
10 | 94159099 |
11 | 659107549 |
12 | 4613765131 |
13 | 32296331341 |
14 | 226074368539 |
15 | 1582520481469 |
16 | 11077643566891 |
17 | 77543504575021 |
18 | 542804532811579 |
19 | 3799631728108189 |
[1,1,19,109,811,5581,39259,274429,1921771, 13450861,94159099,659107549,4613765131, 32296331341,226074368539,1582520481469, 11077643566891,77543504575021,542804532811579, 3799631728108189] |