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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 32 |
| 3 | 128 |
| 4 | 400 |
| 5 | 1344 |
| 6 | 4416 |
| 7 | 14608 |
| 8 | 48224 |
| 9 | 159296 |
| 10 | 526096 |
| 11 | 1737600 |
| 12 | 5738880 |
| 13 | 18954256 |
| 14 | 62601632 |
| 15 | 206759168 |
| 16 | 682879120 |
| 17 | 2255396544 |
| 18 | 7449068736 |
| 19 | 24602602768 |
| 20 | 81256877024 |
| 21 | 268373233856 |
| 22 | 886376578576 |
| 23 | 2927502969600 |
| 24 | 9668885487360 |
[16,32,128,400,1344,4416,14608,48224,159296, 526096,1737600,5738880,18954256,62601632, 206759168,682879120,2255396544,7449068736, 24602602768,81256877024,268373233856,886376578576, 2927502969600,9668885487360] |