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| n | a(n) |
|---|---|
| 1 | 246 |
| 2 | 1312 |
| 3 | 1584 |
| 4 | 2064 |
| 5 | 2852 |
| 6 | 4048 |
| 7 | 6108 |
| 8 | 9992 |
| 9 | 17716 |
| 10 | 33504 |
| 11 | 66188 |
| 12 | 134200 |
| 13 | 275940 |
| 14 | 571280 |
| 15 | 1186108 |
| 16 | 2464488 |
| 17 | 5119124 |
| 18 | 10624576 |
| 19 | 22028268 |
| 20 | 45621656 |
| 21 | 94380868 |
| 22 | 195044592 |
| 23 | 402663068 |
| 24 | 830482504 |
| 25 | 1711286772 |
| 26 | 3523226528 |
| 27 | 7247768908 |
[246,1312,1584,2064,2852,4048,6108,9992,17716, 33504,66188,134200,275940,571280,1186108,2464488, 5119124,10624576,22028268,45621656,94380868, 195044592,402663068,830482504,1711286772, 3523226528,7247768908] |