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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 202410 |
| 7 | 344827336455 |
| 8 | 1418365816378741440 |
| 9 | 13807842729396124460629536 |
| 10 | 310419652143758898175543447421953 |
| 11 | 15464071313054035722739424623204673044920 |
[0,0,0,0,1,202410,344827336455, 1418365816378741440,13807842729396124460629536, 310419652143758898175543447421953, 15464071313054035722739424623204673044920] |