A181843 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 3 |
| | | | | | | | | | | 1 | | 3 | | 6 |
| | | | | | | | | | 1 | | 3 | | 8 | | 12 |
| | | | | | | | | 1 | | 3 | | 8 | | 18 | | 23 |
| | | | | | | | 1 | | 3 | | 8 | | 20 | | 32 | | 38 |
| | | | | | | 1 | | 3 | | 8 | | 20 | | 38 | | 66 | | 73 |
| | | | | | 1 | | 3 | | 8 | | 20 | | 40 | | 78 | | 110 | | 118 |
| | | | | 1 | | 3 | | 8 | | 20 | | 40 | | 84 | | 141 | | 189 | | 198 |
| | | | 1 | | 3 | | 8 | | 20 | | 40 | | 86 | | 153 | | 253 | | 308 | | 318 |
| | | 1 | | 3 | | 8 | | 20 | | 40 | | 86 | | 159 | | 287 | | 409 | | 519 | | 530 |
| | 1 | | 3 | | 8 | | 20 | | 40 | | 86 | | 161 | | 299 | | 476 | | 728 | | 807 | | 819 |
|
A181843 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8
| | 12 | 18 | 20 | 20 | 20 | 20 | 20 | 20 | 20
| | 23 | 32 | 38 | 40 | 40 | 40 | 40 | 40
| | 38 | 66 | 78 | 84 | 86 | 86 | 86
| | 73 | 110 | 141 | 153 | 159 | 161
| | 118 | 189 | 253 | 287 | 299
| | 198 | 308 | 409 | 476
| | 318 | 519 | 728
| | 530 | 807
| | 819
|
A181843 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| | | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8
| | | | 12 | 18 | 20 | 20 | 20 | 20 | 20 | 20 | 20
| | | | | 23 | 32 | 38 | 40 | 40 | 40 | 40 | 40
| | | | | | 38 | 66 | 78 | 84 | 86 | 86 | 86
| | | | | | | 73 | 110 | 141 | 153 | 159 | 161
| | | | | | | | 118 | 189 | 253 | 287 | 299
| | | | | | | | | 198 | 308 | 409 | 476
| | | | | | | | | | 318 | 519 | 728
| | | | | | | | | | | 530 | 807
| | | | | | | | | | | | 819
|
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