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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 34 |
| 3 | 524 |
| 4 | 7970 |
| 5 | 121252 |
| 6 | 1850380 |
| 7 | 28337976 |
| 8 | 435443490 |
| 9 | 6711230900 |
| 10 | 103711749284 |
| 11 | 1606464657096 |
| 12 | 24935144010764 |
| 13 | 387746052588104 |
| 14 | 6039349005200440 |
| 15 | 94203136553911024 |
| 16 | 1471326505700038434 |
| 17 | 23007323485217888340 |
| 18 | 360154459563530689204 |
| 19 | 5643332975601670914600 |
[2,34,524,7970,121252,1850380,28337976,435443490, 6711230900,103711749284,1606464657096, 24935144010764,387746052588104,6039349005200440, 94203136553911024,1471326505700038434, 23007323485217888340,360154459563530689204, 5643332975601670914600] |