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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 91 |
| 5 | 95 |
| 6 | 281 |
| 7 | 376 |
| 8 | 8553 |
| 9 | 8929 |
| 10 | 26411 |
| 11 | 35340 |
| 12 | 803891 |
| 13 | 839231 |
| 14 | 2482353 |
| 15 | 3321584 |
| 16 | 75557201 |
| 17 | 78878785 |
| 18 | 233314771 |
| 19 | 312193556 |
| 20 | 7101573003 |
| 21 | 7413766559 |
| 22 | 21929106121 |
| 23 | 29342872680 |
| 24 | 667472305081 |
| 25 | 696815177761 |
| 26 | 2061102660603 |
| 27 | 2757917838364 |
| 28 | 62735295104611 |
[1,1,3,4,91,95,281,376,8553,8929,26411,35340, 803891,839231,2482353,3321584,75557201,78878785, 233314771,312193556,7101573003,7413766559, 21929106121,29342872680,667472305081,696815177761, 2061102660603,2757917838364,62735295104611] |