n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 7 |
3 | 61 |
4 | 649 |
5 | 8245 |
6 | 122215 |
7 | 2069425 |
8 | 39328465 |
9 | 827226505 |
10 | 19047582055 |
11 | 475956135205 |
12 | 12815133759385 |
13 | 369605936607805 |
14 | 11361372997850695 |
15 | 370609338222772825 |
16 | 12780705695068446625 |
17 | 464412124831585889425 |
18 | 17729002673226394402375 |
19 | 709180766131239680070925 |
[1,1,7,61,649,8245,122215,2069425,39328465, 827226505,19047582055,475956135205,12815133759385, 369605936607805,11361372997850695, 370609338222772825,12780705695068446625, 464412124831585889425,17729002673226394402375, 709180766131239680070925] |