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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 165 |
| 3 | 263725 |
| 4 | 6474088455 |
| 5 | 3326678666649639 |
| 6 | 34353493702738177260748 |
| 7 | 6970324759861265041580630860421 |
[1,165,263725,6474088455,3326678666649639, 34353493702738177260748, 6970324759861265041580630860421] |