A186840 as a triangular array
| | | | | | | 512 |
| | | | | | | 2688 | | 2688 |
| | | | | | 14112 | | 19904 | | 14112 |
| | | | | 74088 | | 147428 | | 147428 | | 74088 |
| | | | 324576 | | 1075071 | | 1537476 | | 1075071 | | 324576 |
| | | 1421952 | | 6019798 | | 15478835 | | 15478835 | | 6019798 | | 1421952 |
| | 6229504 | | 33731024 | | 111211414 | | 209888936 | | 111211414 | | 33731024 |
|
A186840 as a square array
512 | 2688 | 14112 | 74088 | 324576 | 1421952 | 6229504
| 2688 | 19904 | 147428 | 1075071 | 6019798 | 33731024
| 14112 | 147428 | 1537476 | 15478835 | 111211414
| 74088 | 1075071 | 15478835 | 209888936
| 324576 | 6019798 | 111211414
| 1421952 | 33731024
|
A186840 as an upper right triangle
512 | 2688 | 14112 | 74088 | 324576 | 1421952 | 6229504
| | 2688 | 19904 | 147428 | 1075071 | 6019798 | 33731024
| | | 14112 | 147428 | 1537476 | 15478835 | 111211414
| | | | 74088 | 1075071 | 15478835 | 209888936
| | | | | 324576 | 6019798 | 111211414
| | | | | | 1421952 | 33731024
| | | | | |
|
|