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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 81 |
| 3 | 6003 |
| 4 | 866241 |
| 5 | 205785603 |
| 6 | 72824987601 |
| 7 | 35922903140403 |
| 8 | 23555673807464961 |
| 9 | 19815995152757904003 |
| 10 | 20803094759381633159121 |
| 11 | 26658027314982853570374003 |
| 12 | 40950365987475777494675890881 |
| 13 | 74279308405714371324239340912003 |
| 14 | 157078062821547751478860528496041041 |
[1,3,81,6003,866241,205785603,72824987601, 35922903140403,23555673807464961, 19815995152757904003,20803094759381633159121, 26658027314982853570374003, 40950365987475777494675890881, 74279308405714371324239340912003, 157078062821547751478860528496041041] |