A219502 as a triangular array
| | | | | | | | | | | | 2 |
| | | | | | | | | | | | 2 | | 2 |
| | | | | | | | | | | 3 | | 3 | | 3 |
| | | | | | | | | | 4 | | 5 | | 5 | | 4 |
| | | | | | | | | 5 | | 7 | | 11 | | 7 | | 5 |
| | | | | | | | 6 | | 9 | | 18 | | 18 | | 9 | | 6 |
| | | | | | | 7 | | 11 | | 26 | | 35 | | 26 | | 11 | | 7 |
| | | | | | 8 | | 13 | | 35 | | 58 | | 58 | | 35 | | 13 | | 8 |
| | | | | 9 | | 15 | | 45 | | 88 | | 107 | | 88 | | 45 | | 15 | | 9 |
| | | | 10 | | 17 | | 56 | | 126 | | 179 | | 179 | | 126 | | 56 | | 17 | | 10 |
| | | 11 | | 19 | | 68 | | 173 | | 281 | | 325 | | 281 | | 173 | | 68 | | 19 | | 11 |
| | 12 | | 21 | | 81 | | 230 | | 421 | | 550 | | 550 | | 421 |
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A219502 as a square array
2 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
| 2 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21
| 3 | 5 | 11 | 18 | 26 | 35 | 45 | 56 | 68 | 81
| 4 | 7 | 18 | 35 | 58 | 88 | 126 | 173 | 230
| 5 | 9 | 26 | 58 | 107 | 179 | 281 | 421
| 6 | 11 | 35 | 88 | 179 | 325 | 550
| 7 | 13 | 45 | 126 | 281 | 550
| 8 | 15 | 56 | 173 | 421
| 9 | 17 | 68
| 10 | 19
| 11
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A219502 as an upper right triangle
2 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
| | 2 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21
| | | 3 | 5 | 11 | 18 | 26 | 35 | 45 | 56 | 68 | 81
| | | | 4 | 7 | 18 | 35 | 58 | 88 | 126 | 173 | 230
| | | | | 5 | 9 | 26 | 58 | 107 | 179 | 281 | 421
| | | | | | 6 | 11 | 35 | 88 | 179 | 325 | 550
| | | | | | | 7 | 13 | 45 | 126 | 281 | 550
| | | | | | | | 8 | 15 | 56 | 173 | 421
| | | | | | | | | 9 | 17 | 68
| | | | | | | | | | 10 | 19
| | | | | | | | | | | 11
| | | | | | | | | | |
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