A278309 as a triangular array
| | | | | | | | | 0 |
| | | | | | | | | 3 | | 3 |
| | | | | | | | 16 | | 32 | | 16 |
| | | | | | | 51 | | 294 | | 294 | | 51 |
| | | | | | 126 | | 2089 | | 4558 | | 2089 | | 126 |
| | | | | 266 | | 11486 | | 70795 | | 70795 | | 11486 | | 266 |
| | | | 504 | | 51562 | | 986014 | | 2360544 | | 986014 | | 51562 | | 504 |
| | | 882 | | 197981 | | 11557658 | | 79562696 | | 79562696 | | 11557658 | | 197981 | | 882 |
| | 1452 | | 672365 | | 114457714 |
|
A278309 as a square array
0 | 3 | 16 | 51 | 126 | 266 | 504 | 882 | 1452
| 3 | 32 | 294 | 2089 | 11486 | 51562 | 197981 | 672365
| 16 | 294 | 4558 | 70795 | 986014 | 11557658 | 114457714
| 51 | 2089 | 70795 | 2360544 | 79562696
| 126 | 11486 | 986014 | 79562696
| 266 | 51562 | 11557658
| 504 | 197981
| 882
|
A278309 as an upper right triangle
0 | 3 | 16 | 51 | 126 | 266 | 504 | 882 | 1452
| | 3 | 32 | 294 | 2089 | 11486 | 51562 | 197981 | 672365
| | | 16 | 294 | 4558 | 70795 | 986014 | 11557658 | 114457714
| | | | 51 | 2089 | 70795 | 2360544 | 79562696
| | | | | 126 | 11486 | 986014 | 79562696
| | | | | | 266 | 51562 | 11557658
| | | | | | | 504 | 197981
| | | | | | | | 882
| | | | | | | |
|
|