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| n | a(n) |
|---|---|
| 2 | 0 |
| 3 | 23 |
| 4 | 113 |
| 5 | 563 |
| 6 | 1013 |
| 7 | 1823 |
| 8 | 70313 |
| 9 | 351563 |
| 10 | 82013 |
| 11 | 410063 |
| 12 | 43945313 |
| 13 | 1328603 |
| 14 | 18452813 |
| 15 | 1977539063 |
| 16 | 0 |
| 17 | 830376563 |
| 18 | 538084013 |
| 19 | 968551223 |
| 20 | 13452100313 |
| 21 | 1441625976563 |
| 22 | 43584805013 |
| 23 | 2145767211914063 |
| 24 | 0 |
| 25 | 0 |
| 26 | 9806581127813 |
| 27 | 6354664570823 |
| 28 | 681012578320313 |
| 29 | 441296150751563 |
| 30 | 0 |
[0,23,113,563,1013,1823,70313,351563,82013,410063, 43945313,1328603,18452813,1977539063,0,830376563, 538084013,968551223,13452100313,1441625976563, 43584805013,2145767211914063,0,0,9806581127813, 6354664570823,681012578320313,441296150751563,0] |