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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 13 |
| 3 | 9262768 |
| 4 | 795109767172 |
| 5 | 32754692969489938 |
| 6 | 995740669987430403414 |
| 7 | 25181456057693008339763059 |
| 8 | 553092980828190394446335839530 |
| 9 | 10778588361453642047099243794276139 |
| 10 | 188960274405499190582963437501245565303 |
| 11 | 3011196508913216813413704105871678297893034 |
[0,13,9262768,795109767172,32754692969489938, 995740669987430403414,25181456057693008339763059, 553092980828190394446335839530, 10778588361453642047099243794276139, 188960274405499190582963437501245565303, 3011196508913216813413704105871678297893034] |