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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 86 |
| 3 | 111 |
| 4 | 361 |
| 5 | 621 |
| 6 | 1563 |
| 7 | 2853 |
| 8 | 7306 |
| 9 | 12963 |
| 10 | 33522 |
| 11 | 61775 |
| 12 | 157788 |
| 13 | 293072 |
| 14 | 746806 |
| 15 | 1414502 |
| 16 | 3560709 |
| 17 | 6821117 |
| 18 | 17041351 |
| 19 | 33109869 |
| 20 | 81878009 |
| 21 | 160823108 |
| 22 | 394307941 |
| 23 | 783258522 |
| 24 | 1903510955 |
| 25 | 3817195020 |
| 26 | 9202579162 |
| 27 | 18623741941 |
| 28 | 44557228577 |
[64,86,111,361,621,1563,2853,7306,12963,33522, 61775,157788,293072,746806,1414502,3560709, 6821117,17041351,33109869,81878009,160823108, 394307941,783258522,1903510955,3817195020, 9202579162,18623741941,44557228577] |