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| n | a(n) |
|---|---|
| 1 | 26 |
| 2 | 676 |
| 3 | 2430 |
| 4 | 9801 |
| 5 | 49126 |
| 6 | 272206 |
| 7 | 1644265 |
| 8 | 10399480 |
| 9 | 67895010 |
| 10 | 451450105 |
| 11 | 3037317426 |
| 12 | 20579585922 |
| 13 | 140057351785 |
| 14 | 955762122172 |
| 15 | 6533166024022 |
| 16 | 44704031815465 |
| 17 | 306089086744206 |
| 18 | 2096624267502790 |
| 19 | 14364797790087081 |
[26,676,2430,9801,49126,272206,1644265,10399480, 67895010,451450105,3037317426,20579585922, 140057351785,955762122172,6533166024022, 44704031815465,306089086744206,2096624267502790, 14364797790087081] |