A208904 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 3 | | 1 |
| | | | | | | | | | 5 | | 6 | | 1 |
| | | | | | | | | 7 | | 19 | | 9 | | 1 |
| | | | | | | | 9 | | 44 | | 42 | | 12 | | 1 |
| | | | | | | 11 | | 85 | | 138 | | 74 | | 15 | | 1 |
| | | | | | 13 | | 146 | | 363 | | 316 | | 115 | | 18 | | 1 |
| | | | | 15 | | 231 | | 819 | | 1059 | | 605 | | 165 | | 21 | | 1 |
| | | | 17 | | 344 | | 1652 | | 2984 | | 2470 | | 1032 | | 224 | | 24 | | 1 |
| | | 19 | | 489 | | 3060 | | 7380 | | 8378 | | 4974 | | 1624 | | 292 | | 27 | | 1 |
| | 21 | | 670 | | 5301 | | 16488 |
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A208904 as a square array
1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21
| 1 | 6 | 19 | 44 | 85 | 146 | 231 | 344 | 489 | 670
| 1 | 9 | 42 | 138 | 363 | 819 | 1652 | 3060 | 5301
| 1 | 12 | 74 | 316 | 1059 | 2984 | 7380 | 16488
| 1 | 15 | 115 | 605 | 2470 | 8378
| 1 | 18 | 165 | 1032 | 4974
| 1 | 21 | 224 | 1624
| 1 | 24 | 292
| 1 | 27
| 1
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A208904 as an upper right triangle
1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21
| | 1 | 6 | 19 | 44 | 85 | 146 | 231 | 344 | 489 | 670
| | | 1 | 9 | 42 | 138 | 363 | 819 | 1652 | 3060 | 5301
| | | | 1 | 12 | 74 | 316 | 1059 | 2984 | 7380 | 16488
| | | | | 1 | 15 | 115 | 605 | 2470 | 8378
| | | | | | 1 | 18 | 165 | 1032 | 4974
| | | | | | | 1 | 21 | 224 | 1624
| | | | | | | | 1 | 24 | 292
| | | | | | | | | 1 | 27
| | | | | | | | | | 1
| | | | | | | | | |
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