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| n | a(n) |
|---|---|
| 0 | 16 |
| 1 | 257 |
| 2 | 8240 |
| 3 | 132097 |
| 4 | 4235344 |
| 5 | 67897601 |
| 6 | 2176958576 |
| 7 | 34899234817 |
| 8 | 1118952472720 |
| 9 | 17938138798337 |
| 10 | 575139394019504 |
| 11 | 9220168443110401 |
| 12 | 295620529573552336 |
| 13 | 4739148641619947777 |
| 14 | 151948377061411881200 |
| 15 | 2435913181624210046977 |
| 16 | 78101170189036133384464 |
[16,257,8240,132097,4235344,67897601,2176958576, 34899234817,1118952472720,17938138798337, 575139394019504,9220168443110401, 295620529573552336,4739148641619947777, 151948377061411881200,2435913181624210046977, 78101170189036133384464] |