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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 26 |
| 3 | 38 |
| 4 | 100 |
| 5 | 340 |
| 6 | 686 |
| 7 | 2062 |
| 8 | 2786 |
| 9 | 26698 |
| 10 | 40330 |
| 11 | 377668 |
| 12 | 447826 |
| 13 | 759412 |
| 14 | 1269578 |
| 15 | 2403220 |
[2,26,38,100,340,686,2062,2786,26698,40330,377668, 447826,759412,1269578,2403220] |