A180803 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 2 |
| | | | | | | | | | 1 | | 4 | | 3 |
| | | | | | | | | 1 | | 6 | | 8 | | 5 |
| | | | | | | | 1 | | 9 | | 21 | | 20 | | 5 |
| | | | | | | 1 | | 12 | | 45 | | 68 | | 28 | | 8 |
| | | | | | 1 | | 16 | | 87 | | 205 | | 142 | | 56 | | 7 |
| | | | | 1 | | 20 | | 159 | | 549 | | 620 | | 355 | | 64 | | 11 |
| | | | 1 | | 25 | | 270 | | 1336 | | 2338 | | 1957 | | 589 | | 122 | | 12 |
| | | 1 | | 30 | | 435 | | 3000 | | 7770 | | 9383 | | 4507 | | 1250 | | 150 | | 14 |
| | 1 | | 36 | | 676 | | 6302 | | 23282 | | 39768 | | 28783 | | 11171 |
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A180803 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 2 | 4 | 6 | 9 | 12 | 16 | 20 | 25 | 30 | 36
| 3 | 8 | 21 | 45 | 87 | 159 | 270 | 435 | 676
| 5 | 20 | 68 | 205 | 549 | 1336 | 3000 | 6302
| 5 | 28 | 142 | 620 | 2338 | 7770 | 23282
| 8 | 56 | 355 | 1957 | 9383 | 39768
| 7 | 64 | 589 | 4507 | 28783
| 11 | 122 | 1250 | 11171
| 12 | 150
| 14
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A180803 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 2 | 4 | 6 | 9 | 12 | 16 | 20 | 25 | 30 | 36
| | | 3 | 8 | 21 | 45 | 87 | 159 | 270 | 435 | 676
| | | | 5 | 20 | 68 | 205 | 549 | 1336 | 3000 | 6302
| | | | | 5 | 28 | 142 | 620 | 2338 | 7770 | 23282
| | | | | | 8 | 56 | 355 | 1957 | 9383 | 39768
| | | | | | | 7 | 64 | 589 | 4507 | 28783
| | | | | | | | 11 | 122 | 1250 | 11171
| | | | | | | | | 12 | 150
| | | | | | | | | | 14
| | | | | | | | | |
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