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| n | a(n) |
|---|---|
| 10 | 561 |
| 11 | 1105 |
| 12 | 2465 |
| 13 | 6601 |
| 14 | 8911 |
| 15 | 29341 |
| 16 | 41041 |
| 17 | 75361 |
| 18 | 162401 |
| 19 | 278545 |
| 20 | 530881 |
| 21 | 1050985 |
| 22 | 2100901 |
| 23 | 4335241 |
| 24 | 8719309 |
| 25 | 16778881 |
| 26 | 33596641 |
| 27 | 67371265 |
| 28 | 134809921 |
| 29 | 270857521 |
| 30 | 540066241 |
| 31 | 1074363265 |
| 32 | 2159003281 |
| 33 | 4295605861 |
| 34 | 8612234401 |
| 35 | 17190510961 |
| 36 | 34364331001 |
| 37 | 68910004801 |
| 38 | 137691502081 |
| 39 | 274895715601 |
| 40 | 549813672001 |
| 41 | 1099910311201 |
[561,1105,2465,6601,8911,29341,41041,75361,162401, 278545,530881,1050985,2100901,4335241,8719309, 16778881,33596641,67371265,134809921,270857521, 540066241,1074363265,2159003281,4295605861, 8612234401,17190510961,34364331001,68910004801, 137691502081,274895715601,549813672001, 1099910311201] |