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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 11 |
| 3 | 1332 |
| 4 | 1772903 |
| 5 | 25957074155 |
| 6 | 4180412751509808 |
| 7 | 7405856194503424044443 |
| 8 | 144319186063701664852323850561 |
| 9 | 30936099231445891001437365359291226684 |
| 10 | 72945703751334713422596099393765798208419237205 |
[0,1,11,1332,1772903,25957074155,4180412751509808, 7405856194503424044443, 144319186063701664852323850561, 30936099231445891001437365359291226684, 72945703751334713422596099393765798208419237205] |