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| n | a(n) |
|---|---|
| 1 | 40 |
| 2 | 2197 |
| 3 | 121735 |
| 4 | 6748096 |
| 5 | 374079619 |
| 6 | 20737143595 |
| 7 | 1149566489968 |
| 8 | 63726386332735 |
| 9 | 3532681575875629 |
| 10 | 195834721732832344 |
| 11 | 10856126548559080585 |
| 12 | 601810968956118729913 |
| 13 | 33361479413223474759160 |
| 14 | 1849398508920455533993789 |
| 15 | 102521677843870104359906191 |
| 16 | 5683304262020707489694083600 |
[40,2197,121735,6748096,374079619,20737143595, 1149566489968,63726386332735,3532681575875629, 195834721732832344,10856126548559080585, 601810968956118729913,33361479413223474759160, 1849398508920455533993789, 102521677843870104359906191, 5683304262020707489694083600] |