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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 43 |
| 3 | 1333 |
| 4 | 63321 |
| 5 | 4034341 |
| 6 | 321994723 |
| 7 | 30869387193 |
| 8 | 3454384526353 |
| 9 | 441903886812721 |
| 10 | 63608031487665171 |
| 11 | 10174227287873082853 |
| 12 | 1790258521269694523113 |
| 13 | 343669522619597368671933 |
| 14 | 71473405251333054552561091 |
| 15 | 16008271911444915765782477041 |
| 16 | 3841639137772270982094393928353 |
[1,3,43,1333,63321,4034341,321994723,30869387193, 3454384526353,441903886812721,63608031487665171, 10174227287873082853,1790258521269694523113, 343669522619597368671933, 71473405251333054552561091, 16008271911444915765782477041, 3841639137772270982094393928353] |