A218695 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 7 | | 1 |
| | | | | | | 1 | | 25 | | 25 | | 1 |
| | | | | | 1 | | 79 | | 265 | | 79 | | 1 |
| | | | | 1 | | 241 | | 2161 | | 2161 | | 241 | | 1 |
| | | | 1 | | 727 | | 16081 | | 41503 | | 16081 | | 727 | | 1 |
| | | 1 | | 2185 | | 115465 | | 693601 | | 693601 | | 115465 | | 2185 | | 1 |
| | 1 | | 6559 | | 816985 | | 10924399 | | 24997921 | | 10924399 | | 816985 | | 6559 | | 1 |
|
A218695 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 7 | 25 | 79 | 241 | 727 | 2185 | 6559
| | 1 | 25 | 265 | 2161 | 16081 | 115465 | 816985
| | 1 | 79 | 2161 | 41503 | 693601 | 10924399
| | 1 | 241 | 16081 | 693601 | 24997921
| | 1 | 727 | 115465 | 10924399
| | 1 | 2185 | 816985
| | 1 | 6559
| | 1
|
A218695 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 7 | 25 | 79 | 241 | 727 | 2185 | 6559
| | | 1 | 25 | 265 | 2161 | 16081 | 115465 | 816985
| | | | 1 | 79 | 2161 | 41503 | 693601 | 10924399
| | | | | 1 | 241 | 16081 | 693601 | 24997921
| | | | | | 1 | 727 | 115465 | 10924399
| | | | | | | 1 | 2185 | 816985
| | | | | | | | 1 | 6559
| | | | | | | | | 1
|
|
