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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 610 |
| 3 | 27716 |
| 4 | 3128843 |
| 5 | 252139015 |
| 6 | 22926570957 |
| 7 | 1996515036228 |
| 8 | 176531479976571 |
| 9 | 15526120567015962 |
| 10 | 1368042952494285120 |
| 11 | 120466174602717968172 |
| 12 | 10610162775514570773634 |
| 13 | 934433508779628038701082 |
[1,610,27716,3128843,252139015,22926570957, 1996515036228,176531479976571,15526120567015962, 1368042952494285120,120466174602717968172, 10610162775514570773634,934433508779628038701082] |