The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 41 |
| 3 | 1727 |
| 4 | 130917 |
| 5 | 17245160 |
| 6 | 3546873073 |
| 7 | 1046002784253 |
| 8 | 417182980579609 |
| 9 | 215861313302976046 |
| 10 | 140463714074395109081 |
| 11 | 112191246261394235358555 |
| 12 | 107867952671976721983260413 |
| 13 | 122856922623618324408724634164 |
[2,41,1727,130917,17245160,3546873073, 1046002784253,417182980579609,215861313302976046, 140463714074395109081,112191246261394235358555, 107867952671976721983260413, 122856922623618324408724634164] |