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| n | a(n) |
|---|---|
| 1 | 40 |
| 2 | 6440 |
| 3 | 363685 |
| 4 | 28194191 |
| 5 | 2069281146 |
| 6 | 152929723254 |
| 7 | 11300853019444 |
| 8 | 835390769370971 |
| 9 | 61745852507376150 |
| 10 | 4563708721504197779 |
| 11 | 337310171120447151691 |
| 12 | 24931202561823495912020 |
| 13 | 1842711946915214490433763 |
[40,6440,363685,28194191,2069281146,152929723254, 11300853019444,835390769370971,61745852507376150, 4563708721504197779,337310171120447151691, 24931202561823495912020,1842711946915214490433763] |