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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2940 |
| 2 | 27511848 |
| 3 | 324265486545 |
| 4 | 4234842288963000 |
| 5 | 58626067532977225512 |
| 6 | 842744763083824037236800 |
| 7 | 12437726604034570811549435040 |
| 8 | 187171833825593326056635733697560 |
| 9 | 2859197188199406875783449346275416000 |
| 10 | 44198453917285616202092687086145825181264 |
| 11 | 689863061309915307698539343386922516078167200 |
[1,2940,27511848,324265486545,4234842288963000, 58626067532977225512,842744763083824037236800, 12437726604034570811549435040, 187171833825593326056635733697560, 2859197188199406875783449346275416000, 44198453917285616202092687086145825181264, 689863061309915307698539343386922516078167200] |