n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 31 |
4 | 394 |
5 | 7441 |
6 | 195544 |
7 | 6822451 |
8 | 305075254 |
9 | 17010802021 |
10 | 1157048302084 |
11 | 94291964597671 |
12 | 9069435785880514 |
13 | 1016607721798423801 |
14 | 131360503523334458224 |
15 | 19382685928544981625691 |
16 | 3239003918648541605116174 |
17 | 608539911518928818091672781 |
[1,1,4,31,394,7441,195544,6822451,305075254, 17010802021,1157048302084,94291964597671, 9069435785880514,1016607721798423801, 131360503523334458224,19382685928544981625691, 3239003918648541605116174, 608539911518928818091672781] |