A309973 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 0 | | 1 |
| | | | | | | | | 0 | | 1 | | 3 |
| | | | | | | | 0 | | 2 | | 6 | | 10 |
| | | | | | | 0 | | 2 | | 21 | | 42 | | 47 |
| | | | | | 0 | | 3 | | 42 | | 177 | | 264 | | 246 |
| | | | | 0 | | 4 | | 90 | | 619 | | 1746 | | 2095 | | 1602 |
| | | | 0 | | 5 | | 176 | | 1809 | | 7556 | | 16085 | | 16608 | | 11481 |
| | | 0 | | 6 | | 348 | | 5211 | | 32621 | | 100030 | | 171480 | | 154385 | | 95503 |
| | 0 | | 8 | | 640 | | 13961 | | 120964 | | 522890 | | 1262832 | | 1842659 | | 1503232 | | 871030 |
|
A309973 as a square array
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 1 | 1 | 2 | 2 | 3 | 4 | 5 | 6 | 8
| 3 | 6 | 21 | 42 | 90 | 176 | 348 | 640
| 10 | 42 | 177 | 619 | 1809 | 5211 | 13961
| 47 | 264 | 1746 | 7556 | 32621 | 120964
| 246 | 2095 | 16085 | 100030 | 522890
| 1602 | 16608 | 171480 | 1262832
| 11481 | 154385 | 1842659
| 95503 | 1503232
| 871030
|
A309973 as an upper right triangle
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 1 | 1 | 2 | 2 | 3 | 4 | 5 | 6 | 8
| | | 3 | 6 | 21 | 42 | 90 | 176 | 348 | 640
| | | | 10 | 42 | 177 | 619 | 1809 | 5211 | 13961
| | | | | 47 | 264 | 1746 | 7556 | 32621 | 120964
| | | | | | 246 | 2095 | 16085 | 100030 | 522890
| | | | | | | 1602 | 16608 | 171480 | 1262832
| | | | | | | | 11481 | 154385 | 1842659
| | | | | | | | | 95503 | 1503232
| | | | | | | | | | 871030
|
|