A221609 as a triangular array
| | | | | | | | | | 0 |
| | | | | | | | | | 1 | | 0 |
| | | | | | | | | 2 | | 2 | | 0 |
| | | | | | | | 4 | | 10 | | 4 | | 0 |
| | | | | | | 8 | | 53 | | 54 | | 8 | | 0 |
| | | | | | 16 | | 269 | | 811 | | 287 | | 16 | | 0 |
| | | | | 32 | | 1378 | | 11344 | | 12270 | | 1522 | | 32 | | 0 |
| | | | 64 | | 7057 | | 160999 | | 472974 | | 184193 | | 8072 | | 64 | | 0 |
| | | 128 | | 36152 | | 2286878 | | 18561474 | | 19521328 | | 2764070 | | 42810 | | 128 | | 0 |
| | 256 | | 185192 | | 32522604 |
|
A221609 as a square array
0 | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256
| 0 | 2 | 10 | 53 | 269 | 1378 | 7057 | 36152 | 185192
| 0 | 4 | 54 | 811 | 11344 | 160999 | 2286878 | 32522604
| 0 | 8 | 287 | 12270 | 472974 | 18561474
| 0 | 16 | 1522 | 184193 | 19521328
| 0 | 32 | 8072 | 2764070
| 0 | 64 | 42810
| 0 | 128
| 0
|
A221609 as an upper right triangle
0 | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256
| | 0 | 2 | 10 | 53 | 269 | 1378 | 7057 | 36152 | 185192
| | | 0 | 4 | 54 | 811 | 11344 | 160999 | 2286878 | 32522604
| | | | 0 | 8 | 287 | 12270 | 472974 | 18561474
| | | | | 0 | 16 | 1522 | 184193 | 19521328
| | | | | | 0 | 32 | 8072 | 2764070
| | | | | | | 0 | 64 | 42810
| | | | | | | | 0 | 128
| | | | | | | | | 0
| | | | | | | | |
|
|