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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 33 |
| 3 | 483 |
| 4 | 9537 |
| 5 | 235203 |
| 6 | 6960993 |
| 7 | 240350883 |
| 8 | 9484451457 |
| 9 | 421047638403 |
| 10 | 20768624968353 |
| 11 | 1126878096701283 |
| 12 | 66701360437693377 |
| 13 | 4277150701010241603 |
| 14 | 295365044324205535713 |
| 15 | 21853794944452689691683 |
| 16 | 1724738884402183269207297 |
| 17 | 144626802398076537956524803 |
[1,3,33,483,9537,235203,6960993,240350883, 9484451457,421047638403,20768624968353, 1126878096701283,66701360437693377, 4277150701010241603,295365044324205535713, 21853794944452689691683,1724738884402183269207297, 144626802398076537956524803] |