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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 6 |
| 3 | 73 |
| 4 | 1466 |
| 5 | 44053 |
| 6 | 1851692 |
| 7 | 103738805 |
| 8 | 7471045652 |
| 9 | 672497847485 |
| 10 | 73982234269002 |
| 11 | 9766327421355749 |
| 12 | 1523621059965765846 |
| 13 | 277308799241190739721 |
| 14 | 58236371461710021107256 |
| 15 | 13977006459609646256481161 |
| 16 | 3801803993385285491783983048 |
| 17 | 1163365998982356970132155293849 |
[0,1,6,73,1466,44053,1851692,103738805,7471045652, 672497847485,73982234269002,9766327421355749, 1523621059965765846,277308799241190739721, 58236371461710021107256, 13977006459609646256481161, 3801803993385285491783983048, 1163365998982356970132155293849] |