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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 17 |
| 3 | 721 |
| 4 | 56545 |
| 5 | 7062241 |
| 6 | 1283497841 |
| 7 | 319471153457 |
| 8 | 104260273696961 |
| 9 | 43168502192389825 |
| 10 | 22100367268731836881 |
| 11 | 13703484478282258062481 |
| 12 | 10117607255517016666964897 |
| 13 | 8769262856125733251376413601 |
[1,1,17,721,56545,7062241,1283497841,319471153457, 104260273696961,43168502192389825, 22100367268731836881,13703484478282258062481, 10117607255517016666964897, 8769262856125733251376413601] |