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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 11 |
| 3 | 94 |
| 4 | 1072 |
| 5 | 15212 |
| 6 | 257777 |
| 7 | 5074738 |
| 8 | 113775490 |
| 9 | 2861365660 |
| 10 | 79763482974 |
| 11 | 2440866020252 |
| 12 | 81343355108428 |
| 13 | 2932370770780016 |
| 14 | 113695507437209845 |
| 15 | 4717853729131352186 |
| 16 | 208615291319607614600 |
| 17 | 9792578421235713418464 |
[1,2,11,94,1072,15212,257777,5074738,113775490, 2861365660,79763482974,2440866020252, 81343355108428,2932370770780016, 113695507437209845,4717853729131352186, 208615291319607614600,9792578421235713418464] |