A221200 as a triangular array
| | | | | | | | | | 0 |
| | | | | | | | | | 1 | | 0 |
| | | | | | | | | 2 | | 9 | | 0 |
| | | | | | | | 4 | | 10 | | 49 | | 0 |
| | | | | | | 8 | | 196 | | 46 | | 289 | | 0 |
| | | | | | 16 | | 720 | | 9025 | | 212 | | 1681 | | 0 |
| | | | | 32 | | 6400 | | 58700 | | 427716 | | 976 | | 9801 | | 0 |
| | | | 64 | | 34272 | | 2518569 | | 4984812 | | 20277009 | | 4492 | | 57121 | | 0 |
| | | 128 | | 242064 | | 32085376 | | 1026177156 | | 433687328 | | 961434049 | | 20672 | | 332929 | | 0 |
| | 256 |
|
A221200 as a square array
0 | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256
| 0 | 9 | 10 | 196 | 720 | 6400 | 34272 | 242064
| 0 | 49 | 46 | 9025 | 58700 | 2518569 | 32085376
| 0 | 289 | 212 | 427716 | 4984812 | 1026177156
| 0 | 1681 | 976 | 20277009 | 433687328
| 0 | 9801 | 4492 | 961434049
| 0 | 57121 | 20672
| 0 | 332929
| 0
|
A221200 as an upper right triangle
0 | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256
| | 0 | 9 | 10 | 196 | 720 | 6400 | 34272 | 242064
| | | 0 | 49 | 46 | 9025 | 58700 | 2518569 | 32085376
| | | | 0 | 289 | 212 | 427716 | 4984812 | 1026177156
| | | | | 0 | 1681 | 976 | 20277009 | 433687328
| | | | | | 0 | 9801 | 4492 | 961434049
| | | | | | | 0 | 57121 | 20672
| | | | | | | | 0 | 332929
| | | | | | | | | 0
| | | | | | | | |
|
|