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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 5530 |
| 3 | 1516632 |
| 4 | 586416930 |
| 5 | 212235186204 |
| 6 | 77589535205794 |
| 7 | 28318244060569024 |
| 8 | 10338163442842553944 |
| 9 | 3774002232626515614634 |
| 10 | 1377729070961815064673478 |
| 11 | 502950248130165268403057836 |
| 12 | 183605761521188764889164686902 |
[0,5530,1516632,586416930,212235186204, 77589535205794,28318244060569024, 10338163442842553944,3774002232626515614634, 1377729070961815064673478, 502950248130165268403057836, 183605761521188764889164686902] |