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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 7 |
| 3 | 181 |
| 4 | 3292 |
| 5 | 471040370 |
| 6 | 67306057205 |
| 7 | 9087508077407 |
| 8 | 1178111077100976 |
| 9 | 148114138013127912 |
| 10 | 18178417168316158215 |
| 11 | 2188212087201986191885 |
| 12 | 259225249124239023228922 |
| 13 | 30299629289528279427269326 |
| 14 | 34701034033700333299323198313097 |
[0,7,181,3292,471040370,67306057205,9087508077407, 1178111077100976,148114138013127912, 18178417168316158215,2188212087201986191885, 259225249124239023228922, 30299629289528279427269326, 34701034033700333299323198313097] |