A159919 as a triangular array
| | | | | | | | | | | 4 |
| | | | | | | | | | | 7 | | 7 |
| | | | | | | | | | 10 | | 12 | | 10 |
| | | | | | | | | 13 | | 17 | | 17 | | 13 |
| | | | | | | | 16 | | 22 | | 24 | | 22 | | 16 |
| | | | | | | 19 | | 27 | | 31 | | 31 | | 27 | | 19 |
| | | | | | 22 | | 32 | | 38 | | 40 | | 38 | | 32 | | 22 |
| | | | | 25 | | 37 | | 45 | | 49 | | 49 | | 45 | | 37 | | 25 |
| | | | 28 | | 42 | | 52 | | 58 | | 60 | | 58 | | 52 | | 42 | | 28 |
| | | 31 | | 47 | | 59 | | 67 | | 71 | | 71 | | 67 | | 59 | | 47 | | 31 |
| | 34 | | 52 | | 66 | | 76 | | 82 | | 84 | | 82 | | 76 | | 66 | | 52 | | 34 |
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A159919 as a square array
4 | 7 | 10 | 13 | 16 | 19 | 22 | 25 | 28 | 31 | 34
| 7 | 12 | 17 | 22 | 27 | 32 | 37 | 42 | 47 | 52
| 10 | 17 | 24 | 31 | 38 | 45 | 52 | 59 | 66
| 13 | 22 | 31 | 40 | 49 | 58 | 67 | 76
| 16 | 27 | 38 | 49 | 60 | 71 | 82
| 19 | 32 | 45 | 58 | 71 | 84
| 22 | 37 | 52 | 67 | 82
| 25 | 42 | 59 | 76
| 28 | 47 | 66
| 31 | 52
| 34
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A159919 as an upper right triangle
4 | 7 | 10 | 13 | 16 | 19 | 22 | 25 | 28 | 31 | 34
| | 7 | 12 | 17 | 22 | 27 | 32 | 37 | 42 | 47 | 52
| | | 10 | 17 | 24 | 31 | 38 | 45 | 52 | 59 | 66
| | | | 13 | 22 | 31 | 40 | 49 | 58 | 67 | 76
| | | | | 16 | 27 | 38 | 49 | 60 | 71 | 82
| | | | | | 19 | 32 | 45 | 58 | 71 | 84
| | | | | | | 22 | 37 | 52 | 67 | 82
| | | | | | | | 25 | 42 | 59 | 76
| | | | | | | | | 28 | 47 | 66
| | | | | | | | | | 31 | 52
| | | | | | | | | | | 34
|
|