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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 45 |
| 3 | 1453 |
| 4 | 186285 |
| 5 | 381681581 |
| 6 | 3126736191405 |
| 7 | 409827566090715053 |
| 8 | 214867674970568857223085 |
| 9 | 1802440697199513680253124870061 |
| 10 | 967677980931418755473971539884090851245 |
| 11 | 2078072640579877586820864371518464918573279084461 |
| 12 | 285608128960093974754528418755948821932657172723113570336685 |
[1,5,45,1453,186285,381681581,3126736191405, 409827566090715053,214867674970568857223085, 1802440697199513680253124870061, 967677980931418755473971539884090851245, 2078072640579877586820864371518464918573279084461, 28560812896009397475452841875594882193265717272311\ 3570336685] |