A202906 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 4 | | 1 |
| | | | | | | | 1 | | 14 | | 14 | | 1 |
| | | | | | | 1 | | 40 | | 93 | | 40 | | 1 |
| | | | | | 1 | | 116 | | 494 | | 494 | | 116 | | 1 |
| | | | | 1 | | 344 | | 2801 | | 4892 | | 2801 | | 344 | | 1 |
| | | | 1 | | 1016 | | 16062 | | 51068 | | 51068 | | 16062 | | 1016 | | 1 |
| | | 1 | | 2992 | | 91161 | | 538672 | | 993219 | | 538672 | | 91161 | | 2992 | | 1 |
| | 1 | | 8816 | | 517646 | | 5654616 | | 19675348 | | 19675348 |
|
A202906 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 14 | 40 | 116 | 344 | 1016 | 2992 | 8816
| | 1 | 14 | 93 | 494 | 2801 | 16062 | 91161 | 517646
| | 1 | 40 | 494 | 4892 | 51068 | 538672 | 5654616
| | 1 | 116 | 2801 | 51068 | 993219 | 19675348
| | 1 | 344 | 16062 | 538672 | 19675348
| | 1 | 1016 | 91161
| | 1 | 2992
| | 1
|
A202906 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 14 | 40 | 116 | 344 | 1016 | 2992 | 8816
| | | 1 | 14 | 93 | 494 | 2801 | 16062 | 91161 | 517646
| | | | 1 | 40 | 494 | 4892 | 51068 | 538672 | 5654616
| | | | | 1 | 116 | 2801 | 51068 | 993219 | 19675348
| | | | | | 1 | 344 | 16062 | 538672 | 19675348
| | | | | | | 1 | 1016 | 91161
| | | | | | | | 1 | 2992
| | | | | | | | | 1
| | | | | | | | |
|
|
