A260340 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 1 | | 1 |
| | | | | | | | 1 | | 1 | | 1 | | 1 |
| | | | | | | 1 | | 1 | | 6 | | 1 | | 1 |
| | | | | | 1 | | 1 | | 22 | | 22 | | 1 | | 1 |
| | | | | 1 | | 1 | | 130 | | 550 | | 130 | | 1 | | 1 |
| | | | 1 | | 1 | | 822 | | 16700 | | 16700 | | 822 | | 1 | | 1 |
| | | 1 | | 1 | | 6202 | | 703297 | | 3330915 | | 703297 | | 6202 | | 1 | | 1 |
| | 1 | | 1 | | 52552 | | 38135272 | | 957659906 | | 957659906 | | 38135272 | | 52552 | | 1 | | 1 |
|
A260340 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 6 | 22 | 130 | 822 | 6202 | 52552
| | 1 | 1 | 22 | 550 | 16700 | 703297 | 38135272
| | 1 | 1 | 130 | 16700 | 3330915 | 957659906
| | 1 | 1 | 822 | 703297 | 957659906
| | 1 | 1 | 6202 | 38135272
| | 1 | 1 | 52552
| | 1 | 1
| | 1
|
A260340 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | | 1 | 1 | 6 | 22 | 130 | 822 | 6202 | 52552
| | | | 1 | 1 | 22 | 550 | 16700 | 703297 | 38135272
| | | | | 1 | 1 | 130 | 16700 | 3330915 | 957659906
| | | | | | 1 | 1 | 822 | 703297 | 957659906
| | | | | | | 1 | 1 | 6202 | 38135272
| | | | | | | | 1 | 1 | 52552
| | | | | | | | | 1 | 1
| | | | | | | | | | 1
|
|
