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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 105 |
| 2 | 29029 |
| 3 | 9166740 |
| 4 | 3061860165 |
| 5 | 1055101029480 |
| 6 | 370876177263460 |
| 7 | 132173658552875940 |
| 8 | 47583151292491193925 |
| 9 | 17263325497497942304176 |
| 10 | 6301638858548635346648904 |
| 11 | 2311724488328238270596515080 |
| 12 | 851528189436978072303333019620 |
| 13 | 314744785754005167603848040595140 |
[1,105,29029,9166740,3061860165,1055101029480, 370876177263460,132173658552875940, 47583151292491193925,17263325497497942304176, 6301638858548635346648904, 2311724488328238270596515080, 851528189436978072303333019620, 314744785754005167603848040595140] |