A278481 as a triangular array
| | | | | | | | | | | | | 2 |
| | | | | | | | | | | | | 4 | | 4 |
| | | | | | | | | | | | 4 | | 6 | | 4 |
| | | | | | | | | | | 4 | | 6 | | 6 | | 4 |
| | | | | | | | | | 4 | | 6 | | 6 | | 6 | | 4 |
| | | | | | | | | 4 | | 6 | | 6 | | 6 | | 6 | | 4 |
| | | | | | | | 4 | | 6 | | 6 | | 6 | | 6 | | 6 | | 4 |
| | | | | | | 4 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 4 |
| | | | | | 4 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 4 |
| | | | | 4 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 4 |
| | | | 4 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 4 |
| | | 4 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 4 |
| | 4 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 6 | | 4 |
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A278481 as a square array
2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4
| 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6
| 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6
| 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6
| 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6
| 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6
| 4 | 6 | 6 | 6 | 6 | 6 | 6
| 4 | 6 | 6 | 6 | 6 | 6
| 4 | 6 | 6 | 6 | 6
| 4 | 6 | 6 | 6
| 4 | 6 | 6
| 4 | 6
| 4
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A278481 as an upper right triangle
2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4
| | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6
| | | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6
| | | | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6
| | | | | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6
| | | | | | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6
| | | | | | | 4 | 6 | 6 | 6 | 6 | 6 | 6
| | | | | | | | 4 | 6 | 6 | 6 | 6 | 6
| | | | | | | | | 4 | 6 | 6 | 6 | 6
| | | | | | | | | | 4 | 6 | 6 | 6
| | | | | | | | | | | 4 | 6 | 6
| | | | | | | | | | | | 4 | 6
| | | | | | | | | | | | | 4
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