A056241 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | | 1 | | 6 | | 6 | | 1 |
| | | | | | | | 1 | | 10 | | 19 | | 10 | | 1 |
| | | | | | | 1 | | 15 | | 45 | | 45 | | 15 | | 1 |
| | | | | | 1 | | 21 | | 90 | | 141 | | 90 | | 21 | | 1 |
| | | | | 1 | | 28 | | 161 | | 357 | | 357 | | 161 | | 28 | | 1 |
| | | | 1 | | 36 | | 266 | | 784 | | 1107 | | 784 | | 266 | | 36 | | 1 |
| | | 1 | | 45 | | 414 | | 1554 | | 2907 | | 2907 | | 1554 | | 414 | | 45 | | 1 |
| | 1 | | 55 | | 615 | | 2850 | | 6765 | | 8953 | | 6765 | | 2850 | | 615 | | 55 |
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A056241 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 | 55
| 1 | 6 | 19 | 45 | 90 | 161 | 266 | 414 | 615
| 1 | 10 | 45 | 141 | 357 | 784 | 1554 | 2850
| 1 | 15 | 90 | 357 | 1107 | 2907 | 6765
| 1 | 21 | 161 | 784 | 2907 | 8953
| 1 | 28 | 266 | 1554 | 6765
| 1 | 36 | 414 | 2850
| 1 | 45 | 615
| 1 | 55
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A056241 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 | 55
| | | 1 | 6 | 19 | 45 | 90 | 161 | 266 | 414 | 615
| | | | 1 | 10 | 45 | 141 | 357 | 784 | 1554 | 2850
| | | | | 1 | 15 | 90 | 357 | 1107 | 2907 | 6765
| | | | | | 1 | 21 | 161 | 784 | 2907 | 8953
| | | | | | | 1 | 28 | 266 | 1554 | 6765
| | | | | | | | 1 | 36 | 414 | 2850
| | | | | | | | | 1 | 45 | 615
| | | | | | | | | | 1 | 55
| | | | | | | | | |
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