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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 485 |
| 3 | 5346 |
| 4 | 235709 |
| 5 | 2598145 |
| 6 | 114554089 |
| 7 | 1262693124 |
| 8 | 55673051545 |
| 9 | 613666260119 |
| 10 | 27056988496781 |
| 11 | 298240539724710 |
| 12 | 13149640736384021 |
| 13 | 144944288639948941 |
| 14 | 6390698340894137425 |
| 15 | 70442626038475460616 |
| 16 | 3105866244033814404529 |
[1,11,485,5346,235709,2598145,114554089, 1262693124,55673051545,613666260119, 27056988496781,298240539724710,13149640736384021, 144944288639948941,6390698340894137425, 70442626038475460616,3105866244033814404529] |