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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 1103 |
| 3 | 17877 |
| 4 | 257050 |
| 5 | 4143707 |
| 6 | 68363184 |
| 7 | 1073661088 |
| 8 | 17200095426 |
| 9 | 278159538826 |
| 10 | 4418356392225 |
| 11 | 71020967453692 |
| 12 | 1136704302337236 |
| 13 | 18204389915482609 |
| 14 | 291581361291318489 |
| 15 | 4670236803825684178 |
[13,1103,17877,257050,4143707,68363184,1073661088, 17200095426,278159538826,4418356392225, 71020967453692,1136704302337236,18204389915482609, 291581361291318489,4670236803825684178] |