n | a(n) |
---|---|
1 | 81 |
2 | 442 |
3 | 2464 |
4 | 13720 |
5 | 76404 |
6 | 424600 |
7 | 2361716 |
8 | 13136192 |
9 | 73071732 |
10 | 406402784 |
11 | 2260476660 |
12 | 12572745216 |
13 | 69931253876 |
14 | 388958563328 |
15 | 2163420804596 |
16 | 12033035388224 |
17 | 66928590189940 |
18 | 372260237706816 |
19 | 2070535450010484 |
[81,442,2464,13720,76404,424600,2361716,13136192, 73071732,406402784,2260476660,12572745216, 69931253876,388958563328,2163420804596, 12033035388224,66928590189940,372260237706816, 2070535450010484] |