A228275 as a triangular array
| | | | | | | | | | | 0 |
| | | | | | | | | | | 0 | | 0 |
| | | | | | | | | | 0 | | 1 | | 0 |
| | | | | | | | | 0 | | 2 | | 2 | | 0 |
| | | | | | | | 0 | | 3 | | 6 | | 3 | | 0 |
| | | | | | | 0 | | 4 | | 14 | | 12 | | 4 | | 0 |
| | | | | | 0 | | 5 | | 30 | | 39 | | 20 | | 5 | | 0 |
| | | | | 0 | | 6 | | 62 | | 120 | | 84 | | 30 | | 6 | | 0 |
| | | | 0 | | 7 | | 126 | | 363 | | 340 | | 155 | | 42 | | 7 | | 0 |
| | | 0 | | 8 | | 254 | | 1092 | | 1364 | | 780 | | 258 | | 56 | | 8 | | 0 |
| | 0 | | 9 | | 510 | | 3279 | | 5460 | | 3905 | | 1554 | | 399 | | 72 | | 9 | | 0 |
|
A228275 as a square array
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| 0 | 2 | 6 | 14 | 30 | 62 | 126 | 254 | 510
| 0 | 3 | 12 | 39 | 120 | 363 | 1092 | 3279
| 0 | 4 | 20 | 84 | 340 | 1364 | 5460
| 0 | 5 | 30 | 155 | 780 | 3905
| 0 | 6 | 42 | 258 | 1554
| 0 | 7 | 56 | 399
| 0 | 8 | 72
| 0 | 9
| 0
|
A228275 as an upper right triangle
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| | | 0 | 2 | 6 | 14 | 30 | 62 | 126 | 254 | 510
| | | | 0 | 3 | 12 | 39 | 120 | 363 | 1092 | 3279
| | | | | 0 | 4 | 20 | 84 | 340 | 1364 | 5460
| | | | | | 0 | 5 | 30 | 155 | 780 | 3905
| | | | | | | 0 | 6 | 42 | 258 | 1554
| | | | | | | | 0 | 7 | 56 | 399
| | | | | | | | | 0 | 8 | 72
| | | | | | | | | | 0 | 9
| | | | | | | | | | | 0
|
|