A216916 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 3 | | 3 | | 1 |
| | | | | | | | 9 | | 12 | | 6 | | 1 |
| | | | | | | 33 | | 51 | | 34 | | 10 | | 1 |
| | | | | | 135 | | 237 | | 193 | | 79 | | 15 | | 1 |
| | | | | 609 | | 1188 | | 1132 | | 584 | | 160 | | 21 | | 1 |
| | | | 2985 | | 6381 | | 6920 | | 4268 | | 1510 | | 293 | | 28 | | 1 |
| | | 15747 | | 36507 | | 44213 | | 31542 | | 13576 | | 3464 | | 497 | | 36 | | 1 |
| | 88761 | | 221400 | | 295314 | | 238261 | | 120206 | | 37839 | | 7231 | | 794 |
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A216916 as a square array
1 | 1 | 3 | 9 | 33 | 135 | 609 | 2985 | 15747 | 88761
| 1 | 3 | 12 | 51 | 237 | 1188 | 6381 | 36507 | 221400
| 1 | 6 | 34 | 193 | 1132 | 6920 | 44213 | 295314
| 1 | 10 | 79 | 584 | 4268 | 31542 | 238261
| 1 | 15 | 160 | 1510 | 13576 | 120206
| 1 | 21 | 293 | 3464 | 37839
| 1 | 28 | 497 | 7231
| 1 | 36 | 794
| 1
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A216916 as an upper right triangle
1 | 1 | 3 | 9 | 33 | 135 | 609 | 2985 | 15747 | 88761
| | 1 | 3 | 12 | 51 | 237 | 1188 | 6381 | 36507 | 221400
| | | 1 | 6 | 34 | 193 | 1132 | 6920 | 44213 | 295314
| | | | 1 | 10 | 79 | 584 | 4268 | 31542 | 238261
| | | | | 1 | 15 | 160 | 1510 | 13576 | 120206
| | | | | | 1 | 21 | 293 | 3464 | 37839
| | | | | | | 1 | 28 | 497 | 7231
| | | | | | | | 1 | 36 | 794
| | | | | | | | | 1
| | | | | | | | |
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