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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 21 |
| 3 | 370 |
| 4 | 15787 |
| 5 | 1744277 |
| 6 | 506797345 |
| 7 | 390682215445 |
| 8 | 803734397655347 |
| 9 | 4430313100526836692 |
| 10 | 65618063552490194383194 |
| 11 | 2616897361902846669558232537 |
| 12 | 281455127862349591601857362987343 |
| 13 | 81737217988908649002650313009555641846 |
| 14 | 64155724364921456082725604130103414484969173 |
[1,3,21,370,15787,1744277,506797345,390682215445, 803734397655347,4430313100526836692, 65618063552490194383194, 2616897361902846669558232537, 281455127862349591601857362987343, 81737217988908649002650313009555641846, 64155724364921456082725604130103414484969173] |