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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 26 |
| 2 | 627 |
| 3 | 15028 |
| 4 | 360005 |
| 5 | 8623758 |
| 6 | 206577463 |
| 7 | 4948449896 |
| 8 | 118537401609 |
| 9 | 2839498396930 |
| 10 | 68018625641339 |
| 11 | 1629348845225244 |
| 12 | 39030157319430733 |
| 13 | 934945996889162102 |
| 14 | 22396118210466108735 |
| 15 | 536486719624549884112 |
[1,26,627,15028,360005,8623758,206577463, 4948449896,118537401609,2839498396930, 68018625641339,1629348845225244,39030157319430733, 934945996889162102,22396118210466108735, 536486719624549884112] |