A210225 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 2 | | 1 |
| | | | | | | | | | 3 | | 5 | | 1 |
| | | | | | | | | 4 | | 12 | | 10 | | 1 |
| | | | | | | | 5 | | 22 | | 36 | | 17 | | 1 |
| | | | | | | 6 | | 35 | | 88 | | 87 | | 26 | | 1 |
| | | | | | 7 | | 51 | | 175 | | 277 | | 181 | | 37 | | 1 |
| | | | | 8 | | 70 | | 306 | | 680 | | 734 | | 338 | | 50 | | 1 |
| | | | 9 | | 92 | | 490 | | 1416 | | 2196 | | 1710 | | 582 | | 65 | | 1 |
| | | 10 | | 117 | | 736 | | 2632 | | 5402 | | 6156 | | 3606 | | 941 | | 82 | | 1 |
| | 11 | | 145 | | 1053 | | 4502 | | 11592 |
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A210225 as a square array
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| 1 | 5 | 12 | 22 | 35 | 51 | 70 | 92 | 117 | 145
| 1 | 10 | 36 | 88 | 175 | 306 | 490 | 736 | 1053
| 1 | 17 | 87 | 277 | 680 | 1416 | 2632 | 4502
| 1 | 26 | 181 | 734 | 2196 | 5402 | 11592
| 1 | 37 | 338 | 1710 | 6156
| 1 | 50 | 582 | 3606
| 1 | 65 | 941
| 1 | 82
| 1
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A210225 as an upper right triangle
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| | 1 | 5 | 12 | 22 | 35 | 51 | 70 | 92 | 117 | 145
| | | 1 | 10 | 36 | 88 | 175 | 306 | 490 | 736 | 1053
| | | | 1 | 17 | 87 | 277 | 680 | 1416 | 2632 | 4502
| | | | | 1 | 26 | 181 | 734 | 2196 | 5402 | 11592
| | | | | | 1 | 37 | 338 | 1710 | 6156
| | | | | | | 1 | 50 | 582 | 3606
| | | | | | | | 1 | 65 | 941
| | | | | | | | | 1 | 82
| | | | | | | | | | 1
| | | | | | | | | |
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