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| n | a(n) |
|---|---|
| 1 | 2642 |
| 2 | 12866 |
| 3 | 56002 |
| 4 | 273707 |
| 5 | 1301410 |
| 6 | 6027037 |
| 7 | 28125597 |
| 8 | 131242928 |
| 9 | 611072260 |
| 10 | 2847429072 |
| 11 | 13277358450 |
| 12 | 61913782538 |
| 13 | 288771045558 |
| 14 | 1347220992022 |
| 15 | 6286065956155 |
| 16 | 29332988038173 |
| 17 | 136888663584706 |
| 18 | 638853142958977 |
[2642,12866,56002,273707,1301410,6027037,28125597, 131242928,611072260,2847429072,13277358450, 61913782538,288771045558,1347220992022, 6286065956155,29332988038173,136888663584706, 638853142958977] |