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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 12 |
| 3 | 36 |
| 4 | 96 |
| 5 | 240 |
| 6 | 576 |
| 7 | 1344 |
| 8 | 3072 |
| 9 | 6912 |
| 10 | 15360 |
| 11 | 33792 |
| 12 | 73728 |
| 13 | 159744 |
| 14 | 344064 |
| 15 | 737280 |
| 16 | 1572864 |
| 17 | 3342336 |
| 18 | 7077888 |
| 19 | 14942208 |
| 20 | 31457280 |
| 21 | 66060288 |
| 22 | 138412032 |
| 23 | 289406976 |
| 24 | 603979776 |
| 25 | 1258291200 |
| 26 | 2617245696 |
| 27 | 5435817984 |
| 28 | 11274289152 |
| 29 | 23353884672 |
| 30 | 48318382080 |
[1,3,12,36,96,240,576,1344,3072,6912,15360,33792, 73728,159744,344064,737280,1572864,3342336, 7077888,14942208,31457280,66060288,138412032, 289406976,603979776,1258291200,2617245696, 5435817984,11274289152,23353884672,48318382080] |