A208510 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | | | 1 | | 5 | | 4 | | 1 |
| | | | | | | | | 1 | | 7 | | 9 | | 5 | | 1 |
| | | | | | | | 1 | | 9 | | 16 | | 14 | | 6 | | 1 |
| | | | | | | 1 | | 11 | | 25 | | 30 | | 20 | | 7 | | 1 |
| | | | | | 1 | | 13 | | 36 | | 55 | | 50 | | 27 | | 8 | | 1 |
| | | | | 1 | | 15 | | 49 | | 91 | | 105 | | 77 | | 35 | | 9 | | 1 |
| | | | 1 | | 17 | | 64 | | 140 | | 196 | | 182 | | 112 | | 44 | | 10 | | 1 |
| | | 1 | | 19 | | 81 | | 204 | | 336 | | 378 | | 294 | | 156 | | 54 | | 11 | | 1 |
| | 1 | | 21 | | 100 | | 285 | | 540 | | 714 | | 672 | | 450 | | 210 | | 65 | | 12 | | 1 |
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A208510 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21
| | 1 | 4 | 9 | 16 | 25 | 36 | 49 | 64 | 81 | 100
| | 1 | 5 | 14 | 30 | 55 | 91 | 140 | 204 | 285
| | 1 | 6 | 20 | 50 | 105 | 196 | 336 | 540
| | 1 | 7 | 27 | 77 | 182 | 378 | 714
| | 1 | 8 | 35 | 112 | 294 | 672
| | 1 | 9 | 44 | 156 | 450
| | 1 | 10 | 54 | 210
| | 1 | 11 | 65
| | 1 | 12
| | 1
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A208510 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21
| | | 1 | 4 | 9 | 16 | 25 | 36 | 49 | 64 | 81 | 100
| | | | 1 | 5 | 14 | 30 | 55 | 91 | 140 | 204 | 285
| | | | | 1 | 6 | 20 | 50 | 105 | 196 | 336 | 540
| | | | | | 1 | 7 | 27 | 77 | 182 | 378 | 714
| | | | | | | 1 | 8 | 35 | 112 | 294 | 672
| | | | | | | | 1 | 9 | 44 | 156 | 450
| | | | | | | | | 1 | 10 | 54 | 210
| | | | | | | | | | 1 | 11 | 65
| | | | | | | | | | | 1 | 12
| | | | | | | | | | | | 1
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