A157397 as a triangular array
| | | | | | | | 1 |
| | | | | | | | 1 | | 5 |
| | | | | | | 1 | | 15 | | 45 |
| | | | | | 1 | | 105 | | 180 | | 585 |
| | | | | 1 | | 425 | | 2700 | | 2925 | | 9945 |
| | | | 1 | | 3075 | | 34650 | | 52650 | | 59670 | | 208845 |
| | | 1 | | 15855 | | 308700 | | 1248975 | | 1253070 | | 1461915 | | 5221125 |
| | 1 | | 123515 | | 4475520 | | 23689575 | | 33972120 | | 35085960 | | 41769000 |
|
A157397 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 5 | 15 | 105 | 425 | 3075 | 15855 | 123515
| | 45 | 180 | 2700 | 34650 | 308700 | 4475520
| | 585 | 2925 | 52650 | 1248975 | 23689575
| | 9945 | 59670 | 1253070 | 33972120
| | 208845 | 1461915 | 35085960
| | 5221125 | 41769000
|
A157397 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 5 | 15 | 105 | 425 | 3075 | 15855 | 123515
| | | 45 | 180 | 2700 | 34650 | 308700 | 4475520
| | | | 585 | 2925 | 52650 | 1248975 | 23689575
| | | | | 9945 | 59670 | 1253070 | 33972120
| | | | | | 208845 | 1461915 | 35085960
| | | | | | | 5221125 | 41769000
| | | | | | |
|
|
