A286784 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 2 | | 4 | | 1 |
| | | | | | | | | 5 | | 15 | | 9 | | 1 |
| | | | | | | | 14 | | 56 | | 56 | | 16 | | 1 |
| | | | | | | 42 | | 210 | | 300 | | 150 | | 25 | | 1 |
| | | | | | 132 | | 792 | | 1485 | | 1100 | | 330 | | 36 | | 1 |
| | | | | 429 | | 3003 | | 7007 | | 7007 | | 3185 | | 637 | | 49 | | 1 |
| | | | 1430 | | 11440 | | 32032 | | 40768 | | 25480 | | 7840 | | 1120 | | 64 | | 1 |
| | | 4862 | | 43758 | | 143208 | | 222768 | | 179928 | | 77112 | | 17136 | | 1836 | | 81 | | 1 |
| | 16796 | | 167960 | | 629850 | | 1162800 | | 1162800 | | 651168 | | 203490 | | 34200 | | 2850 | | 100 | | 1 |
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A286784 as a square array
1 | 1 | 2 | 5 | 14 | 42 | 132 | 429 | 1430 | 4862 | 16796
| 1 | 4 | 15 | 56 | 210 | 792 | 3003 | 11440 | 43758 | 167960
| 1 | 9 | 56 | 300 | 1485 | 7007 | 32032 | 143208 | 629850
| 1 | 16 | 150 | 1100 | 7007 | 40768 | 222768 | 1162800
| 1 | 25 | 330 | 3185 | 25480 | 179928 | 1162800
| 1 | 36 | 637 | 7840 | 77112 | 651168
| 1 | 49 | 1120 | 17136 | 203490
| 1 | 64 | 1836 | 34200
| 1 | 81 | 2850
| 1 | 100
| 1
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A286784 as an upper right triangle
1 | 1 | 2 | 5 | 14 | 42 | 132 | 429 | 1430 | 4862 | 16796
| | 1 | 4 | 15 | 56 | 210 | 792 | 3003 | 11440 | 43758 | 167960
| | | 1 | 9 | 56 | 300 | 1485 | 7007 | 32032 | 143208 | 629850
| | | | 1 | 16 | 150 | 1100 | 7007 | 40768 | 222768 | 1162800
| | | | | 1 | 25 | 330 | 3185 | 25480 | 179928 | 1162800
| | | | | | 1 | 36 | 637 | 7840 | 77112 | 651168
| | | | | | | 1 | 49 | 1120 | 17136 | 203490
| | | | | | | | 1 | 64 | 1836 | 34200
| | | | | | | | | 1 | 81 | 2850
| | | | | | | | | | 1 | 100
| | | | | | | | | | | 1
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