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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 19 |
| 3 | 193 |
| 4 | 2721 |
| 5 | 49171 |
| 6 | 1084483 |
| 7 | 28245729 |
| 8 | 848456353 |
| 9 | 28875761731 |
| 10 | 1098127402131 |
| 11 | 46150226651233 |
| 12 | 2124008553358849 |
| 13 | 106246577894593683 |
| 14 | 5739439214861417731 |
| 15 | 332993721039856822081 |
| 16 | 20651350143685984386753 |
[1,3,19,193,2721,49171,1084483,28245729,848456353, 28875761731,1098127402131,46150226651233, 2124008553358849,106246577894593683, 5739439214861417731,332993721039856822081, 20651350143685984386753] |