A176428 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 4 | | 1 |
| | | | | | | | 1 | | 15 | | 15 | | 1 |
| | | | | | | 1 | | 54 | | 194 | | 54 | | 1 |
| | | | | | 1 | | 185 | | 2118 | | 2118 | | 185 | | 1 |
| | | | | 1 | | 608 | | 20831 | | 65344 | | 20831 | | 608 | | 1 |
| | | | 1 | | 1939 | | 194633 | | 1835923 | | 1835923 | | 194633 | | 1939 | | 1 |
| | | 1 | | 6058 | | 1777912 | | 50102326 | | 151670254 | | 50102326 | | 1777912 | | 6058 | | 1 |
| | 1 | | 18669 | | 16091400 |
|
A176428 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 15 | 54 | 185 | 608 | 1939 | 6058 | 18669
| | 1 | 15 | 194 | 2118 | 20831 | 194633 | 1777912 | 16091400
| | 1 | 54 | 2118 | 65344 | 1835923 | 50102326
| | 1 | 185 | 20831 | 1835923 | 151670254
| | 1 | 608 | 194633 | 50102326
| | 1 | 1939 | 1777912
| | 1 | 6058
| | 1
|
A176428 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 15 | 54 | 185 | 608 | 1939 | 6058 | 18669
| | | 1 | 15 | 194 | 2118 | 20831 | 194633 | 1777912 | 16091400
| | | | 1 | 54 | 2118 | 65344 | 1835923 | 50102326
| | | | | 1 | 185 | 20831 | 1835923 | 151670254
| | | | | | 1 | 608 | 194633 | 50102326
| | | | | | | 1 | 1939 | 1777912
| | | | | | | | 1 | 6058
| | | | | | | | | 1
| | | | | | | | |
|
|
