A303911 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 1 | | 2 | | 2 |
| | | | | | | | | | 1 | | 3 | | 5 | | 4 |
| | | | | | | | | 1 | | 4 | | 10 | | 13 | | 9 |
| | | | | | | | 1 | | 5 | | 16 | | 31 | | 35 | | 20 |
| | | | | | | 1 | | 6 | | 24 | | 60 | | 98 | | 95 | | 48 |
| | | | | | 1 | | 7 | | 33 | | 103 | | 217 | | 304 | | 262 | | 115 |
| | | | | 1 | | 8 | | 44 | | 162 | | 423 | | 764 | | 945 | | 727 | | 286 |
| | | | 1 | | 9 | | 56 | | 241 | | 743 | | 1658 | | 2643 | | 2916 | | 2033 | | 719 |
| | | 1 | | 10 | | 70 | | 341 | | 1221 | | 3224 | | 6319 | | 8996 | | 8984 | | 5714 | | 1842 |
| | 1 | | 11 | | 85 | | 466 | | 1893 |
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A303911 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| 2 | 5 | 10 | 16 | 24 | 33 | 44 | 56 | 70 | 85
| 4 | 13 | 31 | 60 | 103 | 162 | 241 | 341 | 466
| 9 | 35 | 98 | 217 | 423 | 743 | 1221 | 1893
| 20 | 95 | 304 | 764 | 1658 | 3224
| 48 | 262 | 945 | 2643 | 6319
| 115 | 727 | 2916 | 8996
| 286 | 2033 | 8984
| 719 | 5714
| 1842
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A303911 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| | | 2 | 5 | 10 | 16 | 24 | 33 | 44 | 56 | 70 | 85
| | | | 4 | 13 | 31 | 60 | 103 | 162 | 241 | 341 | 466
| | | | | 9 | 35 | 98 | 217 | 423 | 743 | 1221 | 1893
| | | | | | 20 | 95 | 304 | 764 | 1658 | 3224
| | | | | | | 48 | 262 | 945 | 2643 | 6319
| | | | | | | | 115 | 727 | 2916 | 8996
| | | | | | | | | 286 | 2033 | 8984
| | | | | | | | | | 719 | 5714
| | | | | | | | | | | 1842
| | | | | | | | | | |
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