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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 151316 |
| 3 | 9411975375 |
| 4 | 490179860527896 |
| 5 | 24080189412483072000 |
| 6 | 1154617875754582889149500 |
| 7 | 54740416599810921320592441119 |
| 8 | 2580716459066338161324165906475056 |
| 9 | 121316352059447360262303173959408358625 |
| 10 | 5694319004079097795957215725765328371712000 |
[1,151316,9411975375,490179860527896, 24080189412483072000,1154617875754582889149500, 54740416599810921320592441119, 2580716459066338161324165906475056, 121316352059447360262303173959408358625, 5694319004079097795957215725765328371712000] |