A205552 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | | | 1 | | 1 | | 4 | | 1 |
| | | | | | | | | 1 | | 3 | | 6 | | 6 | | 1 |
| | | | | | | | 1 | | 6 | | 4 | | 15 | | 8 | | 1 |
| | | | | | | 1 | | 10 | | 1 | | 20 | | 28 | | 10 | | 1 |
| | | | | | 1 | | 15 | | 5 | | 15 | | 56 | | 45 | | 12 | | 1 |
| | | | | 1 | | 21 | | 15 | | 6 | | 70 | | 120 | | 66 | | 14 | | 1 |
| | | | 1 | | 28 | | 35 | | 1 | | 56 | | 210 | | 220 | | 91 | | 16 | | 1 |
| | | 1 | | 36 | | 70 | | 7 | | 28 | | 252 | | 495 | | 364 | | 120 | | 18 | | 1 |
| | 1 | | 45 | | 126 | | 28 | | 8 | | 210 | | 792 | | 1001 |
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A205552 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45
| | 1 | 4 | 6 | 4 | 1 | 5 | 15 | 35 | 70 | 126
| | 1 | 6 | 15 | 20 | 15 | 6 | 1 | 7 | 28
| | 1 | 8 | 28 | 56 | 70 | 56 | 28 | 8
| | 1 | 10 | 45 | 120 | 210 | 252 | 210
| | 1 | 12 | 66 | 220 | 495 | 792
| | 1 | 14 | 91 | 364 | 1001
| | 1 | 16 | 120
| | 1 | 18
| | 1
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A205552 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45
| | | 1 | 4 | 6 | 4 | 1 | 5 | 15 | 35 | 70 | 126
| | | | 1 | 6 | 15 | 20 | 15 | 6 | 1 | 7 | 28
| | | | | 1 | 8 | 28 | 56 | 70 | 56 | 28 | 8
| | | | | | 1 | 10 | 45 | 120 | 210 | 252 | 210
| | | | | | | 1 | 12 | 66 | 220 | 495 | 792
| | | | | | | | 1 | 14 | 91 | 364 | 1001
| | | | | | | | | 1 | 16 | 120
| | | | | | | | | | 1 | 18
| | | | | | | | | | | 1
| | | | | | | | | | |
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