n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 25 |
4 | 217 |
5 | 2416 |
6 | 32839 |
7 | 527185 |
8 | 9761602 |
9 | 204800551 |
10 | 4801461049 |
11 | 124402647370 |
12 | 3529848676237 |
13 | 108859319101261 |
14 | 3625569585663484 |
15 | 129689000146431205 |
16 | 4958830249864725997 |
17 | 201834650901695603296 |
18 | 8712774828941647677019 |
19 | 397596632650906687905565 |
[1,1,4,25,217,2416,32839,527185,9761602,204800551, 4801461049,124402647370,3529848676237, 108859319101261,3625569585663484, 129689000146431205,4958830249864725997, 201834650901695603296,8712774828941647677019, 397596632650906687905565] |