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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 36 |
| 3 | 6286 |
| 4 | 1056496 |
| 5 | 197741887 |
| 6 | 38987482590 |
| 7 | 7992252465604 |
| 8 | 1685955453442326 |
| 9 | 363605412277403725 |
| 10 | 79808698852014867735 |
| 11 | 17769930438868419048744 |
| 12 | 4003861131932651139989514 |
| 13 | 911215485942545343663605503 |
| 14 | 209160405405110598032066208338 |
[0,1,36,6286,1056496,197741887,38987482590, 7992252465604,1685955453442326,363605412277403725, 79808698852014867735,17769930438868419048744, 4003861131932651139989514, 911215485942545343663605503, 209160405405110598032066208338] |