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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 161 |
| 3 | 52424 |
| 4 | 6888340 |
| 5 | 518626568 |
| 6 | 27351484380 |
| 7 | 1123462079180 |
| 8 | 38208069702548 |
| 9 | 1117773552649752 |
| 10 | 28854012889071265 |
| 11 | 669117722718849452 |
| 12 | 14125545954412619268 |
| 13 | 274254133053070192532 |
| 14 | 4937202122626940281323 |
[0,161,52424,6888340,518626568,27351484380, 1123462079180,38208069702548,1117773552649752, 28854012889071265,669117722718849452, 14125545954412619268,274254133053070192532, 4937202122626940281323] |