A027478 as a triangular array
| | | | | | | | 1 |
| | | | | | | | 7 | | 1 |
| | | | | | | 176 | | 39 | | 1 |
| | | | | | 10746 | | 2951 | | 126 | | 1 |
| | | | | 1297704 | | 407450 | | 22535 | | 310 | | 1 |
| | | | 272866980 | | 94128364 | | 6139575 | | 112435 | | 645 | | 1 |
| | | 91570835040 | | 33910601508 | | 2487385684 | | 54814095 | | 426475 | | 1197 | | 1 |
| | 46034917019280 | | 18030534782364 | | 1446119232796 | | 36402686929 | | 345710680 | | 1333906 | | 2044 | | 1 |
|
A027478 as a square array
1 | 7 | 176 | 10746 | 1297704 | 272866980 | 91570835040 | 46034917019280
| 1 | 39 | 2951 | 407450 | 94128364 | 33910601508 | 18030534782364
| 1 | 126 | 22535 | 6139575 | 2487385684 | 1446119232796
| 1 | 310 | 112435 | 54814095 | 36402686929
| 1 | 645 | 426475 | 345710680
| 1 | 1197 | 1333906
| 1 | 2044
| 1
|
A027478 as an upper right triangle
1 | 7 | 176 | 10746 | 1297704 | 272866980 | 91570835040 | 46034917019280
| | 1 | 39 | 2951 | 407450 | 94128364 | 33910601508 | 18030534782364
| | | 1 | 126 | 22535 | 6139575 | 2487385684 | 1446119232796
| | | | 1 | 310 | 112435 | 54814095 | 36402686929
| | | | | 1 | 645 | 426475 | 345710680
| | | | | | 1 | 1197 | 1333906
| | | | | | | 1 | 2044
| | | | | | | | 1
|
|