n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 25 |
3 | 226 |
4 | 2713 |
5 | 40696 |
6 | 732529 |
7 | 15383110 |
8 | 369194641 |
9 | 9968255308 |
10 | 299047659241 |
11 | 9868572754954 |
12 | 355268619178345 |
13 | 13855476147955456 |
14 | 581929998214129153 |
15 | 26186849919635811886 |
16 | 1256968796142518970529 |
[1,4,25,226,2713,40696,732529,15383110,369194641, 9968255308,299047659241,9868572754954, 355268619178345,13855476147955456, 581929998214129153,26186849919635811886, 1256968796142518970529] |