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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1722 |
| 2 | 742182 |
| 3 | 142663682 |
| 4 | 15514489872 |
| 5 | 1088445250494 |
| 6 | 53568798667706 |
| 7 | 1960718646502086 |
| 8 | 55727804060652486 |
| 9 | 1271609411092944406 |
| 10 | 23921455510392255018 |
| 11 | 379124273790705666510 |
| 12 | 5154221723429907663360 |
[1,1722,742182,142663682,15514489872, 1088445250494,53568798667706,1960718646502086, 55727804060652486,1271609411092944406, 23921455510392255018,379124273790705666510, 5154221723429907663360] |