n | a(n) |
---|---|
0 | -1 |
1 | 3 |
2 | 1 |
3 | 27 |
4 | 289 |
5 | 4683 |
6 | 95761 |
7 | 2382747 |
8 | 69870529 |
9 | 2359997163 |
10 | 90239163121 |
11 | 3853391348667 |
12 | 181765659243169 |
13 | 9386568200722443 |
14 | 526713953100688081 |
15 | 31912283163641549787 |
16 | 2076293242327577102209 |
17 | 144382074825232693748523 |
18 | 10686433228580787658046641 |
[-1,3,1,27,289,4683,95761,2382747,69870529, 2359997163,90239163121,3853391348667, 181765659243169,9386568200722443, 526713953100688081,31912283163641549787, 2076293242327577102209,144382074825232693748523, 10686433228580787658046641] |