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| n | a(n) |
|---|---|
| 10 | 1 |
| 11 | 11 |
| 12 | 79 |
| 13 | 474 |
| 14 | 2561 |
| 15 | 12937 |
| 16 | 62524 |
| 17 | 293146 |
| 18 | 1344602 |
| 19 | 6065734 |
| 20 | 27007870 |
| 21 | 118984043 |
| 22 | 519589872 |
| 23 | 2252141576 |
| 24 | 9699519424 |
| 25 | 41541816291 |
| 26 | 177048628294 |
| 27 | 751293699026 |
| 28 | 3175665502731 |
| 29 | 13376228005419 |
| 30 | 56162636663430 |
| 31 | 235124074987923 |
| 32 | 981718571224412 |
| 33 | 4088916793922566 |
[1,11,79,474,2561,12937,62524,293146,1344602, 6065734,27007870,118984043,519589872,2252141576, 9699519424,41541816291,177048628294,751293699026, 3175665502731,13376228005419,56162636663430, 235124074987923,981718571224412,4088916793922566] |