A223247 as a triangular array
| | | | | | | | 7 |
| | | | | | | | 18 | | 18 |
| | | | | | | 60 | | 102 | | 60 |
| | | | | | 168 | | 642 | | 642 | | 168 |
| | | | | 528 | | 4086 | | 11538 | | 4086 | | 528 |
| | | | 1536 | | 26034 | | 144582 | | 144582 | | 26034 | | 1536 |
| | | 4704 | | 165894 | | 2663082 | | 5336844 | | 2663082 | | 165894 | | 4704 |
| | 13920 | | 1057122 | | 33590454 | | 198634758 | | 198634758 | | 33590454 | | 1057122 | | 13920 |
|
A223247 as a square array
7 | 18 | 60 | 168 | 528 | 1536 | 4704 | 13920
| 18 | 102 | 642 | 4086 | 26034 | 165894 | 1057122
| 60 | 642 | 11538 | 144582 | 2663082 | 33590454
| 168 | 4086 | 144582 | 5336844 | 198634758
| 528 | 26034 | 2663082 | 198634758
| 1536 | 165894 | 33590454
| 4704 | 1057122
| 13920
|
A223247 as an upper right triangle
7 | 18 | 60 | 168 | 528 | 1536 | 4704 | 13920
| | 18 | 102 | 642 | 4086 | 26034 | 165894 | 1057122
| | | 60 | 642 | 11538 | 144582 | 2663082 | 33590454
| | | | 168 | 4086 | 144582 | 5336844 | 198634758
| | | | | 528 | 26034 | 2663082 | 198634758
| | | | | | 1536 | 165894 | 33590454
| | | | | | | 4704 | 1057122
| | | | | | | | 13920
|
|