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| n | a(n) |
|---|---|
| 0 | 16 |
| 1 | 244 |
| 2 | 892 |
| 3 | 2764 |
| 4 | 8236 |
| 5 | 24364 |
| 6 | 72172 |
| 7 | 214444 |
| 8 | 638956 |
| 9 | 1907884 |
| 10 | 5705452 |
| 11 | 17079724 |
| 12 | 51165676 |
| 13 | 153349804 |
| 14 | 459754732 |
| 15 | 1378674604 |
| 16 | 4134844396 |
| 17 | 12402174124 |
| 18 | 37201804012 |
| 19 | 111595975084 |
| 20 | 334769051116 |
| 21 | 1004269404844 |
| 22 | 3012732717292 |
| 23 | 9038047157164 |
| 24 | 27113839481836 |
| 25 | 81340914465964 |
| 26 | 244021535438572 |
| 27 | 732062190396844 |
[16,244,892,2764,8236,24364,72172,214444,638956, 1907884,5705452,17079724,51165676,153349804, 459754732,1378674604,4134844396,12402174124, 37201804012,111595975084,334769051116, 1004269404844,3012732717292,9038047157164, 27113839481836,81340914465964,244021535438572, 732062190396844] |