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| n | a(n) |
|---|---|
| 0 | 26 |
| 1 | 27 |
| 2 | 53 |
| 3 | 80 |
| 4 | 213 |
| 5 | 1571 |
| 6 | 6497 |
| 7 | 21062 |
| 8 | 69683 |
| 9 | 299794 |
| 10 | 2168241 |
| 11 | 4636276 |
| 12 | 6804517 |
| 13 | 11440793 |
| 14 | 18245310 |
| 15 | 960196913 |
| 16 | 978442223 |
| 17 | 1938639136 |
| 18 | 2917081359 |
| 19 | 7772801854 |
| 20 | 57326694337 |
| 21 | 237079579202 |
| 22 | 768565431943 |
[26,27,53,80,213,1571,6497,21062,69683,299794, 2168241,4636276,6804517,11440793,18245310, 960196913,978442223,1938639136,2917081359, 7772801854,57326694337,237079579202,768565431943] |