A146988 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 6 | | 1 |
| | | | | | | | 1 | | 19 | | 19 | | 1 |
| | | | | | | 1 | | 68 | | 134 | | 68 | | 1 |
| | | | | | 1 | | 261 | | 778 | | 778 | | 261 | | 1 |
| | | | | 1 | | 1030 | | 4111 | | 6164 | | 4111 | | 1030 | | 1 |
| | | | 1 | | 4103 | | 20501 | | 40995 | | 40995 | | 20501 | | 4103 | | 1 |
| | | 1 | | 16392 | | 98332 | | 245816 | | 327750 | | 245816 | | 98332 | | 16392 | | 1 |
| | 1 | | 65545 | | 458788 | | 1376340 | | 2293886 | | 2293886 | | 1376340 | | 458788 | | 65545 | | 1 |
|
A146988 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 19 | 68 | 261 | 1030 | 4103 | 16392 | 65545
| | 1 | 19 | 134 | 778 | 4111 | 20501 | 98332 | 458788
| | 1 | 68 | 778 | 6164 | 40995 | 245816 | 1376340
| | 1 | 261 | 4111 | 40995 | 327750 | 2293886
| | 1 | 1030 | 20501 | 245816 | 2293886
| | 1 | 4103 | 98332 | 1376340
| | 1 | 16392 | 458788
| | 1 | 65545
| | 1
|
A146988 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 19 | 68 | 261 | 1030 | 4103 | 16392 | 65545
| | | 1 | 19 | 134 | 778 | 4111 | 20501 | 98332 | 458788
| | | | 1 | 68 | 778 | 6164 | 40995 | 245816 | 1376340
| | | | | 1 | 261 | 4111 | 40995 | 327750 | 2293886
| | | | | | 1 | 1030 | 20501 | 245816 | 2293886
| | | | | | | 1 | 4103 | 98332 | 1376340
| | | | | | | | 1 | 16392 | 458788
| | | | | | | | | 1 | 65545
| | | | | | | | | | 1
|
|
