A247505 as a triangular array
| | | | | | | | | | | | 0 |
| | | | | | | | | | | | 0 | | 0 |
| | | | | | | | | | | 0 | | 1 | | 0 |
| | | | | | | | | | 0 | | 1 | | 1 | | 0 |
| | | | | | | | | 0 | | 1 | | 3 | | 1 | | 0 |
| | | | | | | | 0 | | 1 | | 3 | | 4 | | 1 | | 0 |
| | | | | | | 0 | | 1 | | 3 | | 7 | | 7 | | 1 | | 0 |
| | | | | | 0 | | 1 | | 3 | | 7 | | 11 | | 11 | | 1 | | 0 |
| | | | | 0 | | 1 | | 3 | | 7 | | 15 | | 21 | | 18 | | 1 | | 0 |
| | | | 0 | | 1 | | 3 | | 7 | | 15 | | 26 | | 39 | | 29 | | 1 | | 0 |
| | | 0 | | 1 | | 3 | | 7 | | 15 | | 31 | | 51 | | 71 | | 47 | | 1 | | 0 |
| | 0 | | 1 | | 3 | | 7 | | 15 | | 31 | | 57 | | 99 | | 131 | | 76 | | 1 | | 0 |
|
A247505 as a square array
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 0 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| | 0 | 1 | 4 | 7 | 7 | 7 | 7 | 7 | 7
| | 0 | 1 | 7 | 11 | 15 | 15 | 15 | 15
| | 0 | 1 | 11 | 21 | 26 | 31 | 31
| | 0 | 1 | 18 | 39 | 51 | 57
| | 0 | 1 | 29 | 71 | 99
| | 0 | 1 | 47 | 131
| | 0 | 1 | 76
| | 0 | 1
| | 0
|
A247505 as an upper right triangle
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | | 0 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| | | | 0 | 1 | 4 | 7 | 7 | 7 | 7 | 7 | 7
| | | | | 0 | 1 | 7 | 11 | 15 | 15 | 15 | 15
| | | | | | 0 | 1 | 11 | 21 | 26 | 31 | 31
| | | | | | | 0 | 1 | 18 | 39 | 51 | 57
| | | | | | | | 0 | 1 | 29 | 71 | 99
| | | | | | | | | 0 | 1 | 47 | 131
| | | | | | | | | | 0 | 1 | 76
| | | | | | | | | | | 0 | 1
| | | | | | | | | | | | 0
|
|
