A081964 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 3 | | 5 |
| | | | | | | | | | | 2 | | 4 | | 7 |
| | | | | | | | | | 9 | | 11 | | 13 | | 15 |
| | | | | | | | | 6 | | 8 | | 12 | | 14 | | 16 |
| | | | | | | | 17 | | 19 | | 23 | | 25 | | 29 | | 31 |
| | | | | | | 10 | | 18 | | 20 | | 22 | | 24 | | 26 | | 27 |
| | | | | | 21 | | 33 | | 35 | | 37 | | 39 | | 41 | | 43 | | 45 |
| | | | | 28 | | 32 | | 34 | | 38 | | 40 | | 44 | | 46 | | 47 | | 49 |
| | | | 51 | | 53 | | 57 | | 59 | | 61 | | 63 | | 67 | | 69 | | 71 | | 73 |
| | | 30 | | 36 | | 42 | | 48 | | 50 | | 52 | | 54 | | 56 | | 58 | | 60 | | 62 |
| | 55 | | 65 | | 77 | | 79 | | 83 | | 85 |
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A081964 as a square array
1 | 3 | 2 | 9 | 6 | 17 | 10 | 21 | 28 | 51 | 30 | 55
| 5 | 4 | 11 | 8 | 19 | 18 | 33 | 32 | 53 | 36 | 65
| 7 | 13 | 12 | 23 | 20 | 35 | 34 | 57 | 42 | 77
| 15 | 14 | 25 | 22 | 37 | 38 | 59 | 48 | 79
| 16 | 29 | 24 | 39 | 40 | 61 | 50 | 83
| 31 | 26 | 41 | 44 | 63 | 52 | 85
| 27 | 43 | 46 | 67 | 54
| 45 | 47 | 69 | 56
| 49 | 71 | 58
| 73 | 60
| 62
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A081964 as an upper right triangle
1 | 3 | 2 | 9 | 6 | 17 | 10 | 21 | 28 | 51 | 30 | 55
| | 5 | 4 | 11 | 8 | 19 | 18 | 33 | 32 | 53 | 36 | 65
| | | 7 | 13 | 12 | 23 | 20 | 35 | 34 | 57 | 42 | 77
| | | | 15 | 14 | 25 | 22 | 37 | 38 | 59 | 48 | 79
| | | | | 16 | 29 | 24 | 39 | 40 | 61 | 50 | 83
| | | | | | 31 | 26 | 41 | 44 | 63 | 52 | 85
| | | | | | | 27 | 43 | 46 | 67 | 54
| | | | | | | | 45 | 47 | 69 | 56
| | | | | | | | | 49 | 71 | 58
| | | | | | | | | | 73 | 60
| | | | | | | | | | | 62
| | | | | | | | | | |
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