n | a(n) |
---|---|
2 | 1 |
3 | 2 |
4 | 7 |
5 | 39 |
6 | 311 |
7 | 3268 |
8 | 42799 |
9 | 672605 |
10 | 12345679 |
11 | 259374246 |
12 | 6140565047 |
13 | 161792257795 |
14 | 4696537119847 |
15 | 148943500129544 |
16 | 5124095576030431 |
17 | 190082780764323705 |
18 | 7563707819165039903 |
19 | 321380710796022350410 |
20 | 14523213296398891966759 |
21 | 695546073617378871592991 |
[1,2,7,39,311,3268,42799,672605,12345679, 259374246,6140565047,161792257795,4696537119847, 148943500129544,5124095576030431, 190082780764323705,7563707819165039903, 321380710796022350410,14523213296398891966759, 695546073617378871592991] |