A221683 as a triangular array
| | | | | | | | | | | | 0 |
| | | | | | | | | | | | 0 | | 2 |
| | | | | | | | | | | 0 | | 2 | | 4 |
| | | | | | | | | | 0 | | 2 | | 5 | | 8 |
| | | | | | | | | 0 | | 2 | | 5 | | 14 | | 16 |
| | | | | | | | 0 | | 2 | | 5 | | 20 | | 40 | | 32 |
| | | | | | | 0 | | 2 | | 5 | | 26 | | 68 | | 113 | | 64 |
| | | | | | 0 | | 2 | | 5 | | 32 | | 100 | | 241 | | 320 | | 128 |
| | | | | 0 | | 2 | | 5 | | 38 | | 133 | | 418 | | 844 | | 906 | | 256 |
| | | | 0 | | 2 | | 5 | | 44 | | 166 | | 636 | | 1692 | | 2966 | | 2565 | | 512 |
| | | 0 | | 2 | | 5 | | 50 | | 199 | | 891 | | 2856 | | 6932 | | 10413 | | 7262 | | 1024 |
| | 0 | | 2 | | 5 | | 56 | | 232 |
|
A221683 as a square array
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2
| 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5
| 8 | 14 | 20 | 26 | 32 | 38 | 44 | 50 | 56
| 16 | 40 | 68 | 100 | 133 | 166 | 199 | 232
| 32 | 113 | 241 | 418 | 636 | 891
| 64 | 320 | 844 | 1692 | 2856
| 128 | 906 | 2966 | 6932
| 256 | 2565 | 10413
| 512 | 7262
| 1024
|
A221683 as an upper right triangle
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2
| | | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5
| | | | 8 | 14 | 20 | 26 | 32 | 38 | 44 | 50 | 56
| | | | | 16 | 40 | 68 | 100 | 133 | 166 | 199 | 232
| | | | | | 32 | 113 | 241 | 418 | 636 | 891
| | | | | | | 64 | 320 | 844 | 1692 | 2856
| | | | | | | | 128 | 906 | 2966 | 6932
| | | | | | | | | 256 | 2565 | 10413
| | | | | | | | | | 512 | 7262
| | | | | | | | | | | 1024
| | | | | | | | | | |
|
|