A213008 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 2 |
| | | | | | | | | | | 1 | | 2 | | 3 |
| | | | | | | | | | 1 | | 3 | | 4 | | 5 |
| | | | | | | | | 1 | | 3 | | 5 | | 6 | | 7 |
| | | | | | | | 1 | | 4 | | 7 | | 9 | | 10 | | 11 |
| | | | | | | 1 | | 4 | | 8 | | 10 | | 12 | | 13 | | 14 |
| | | | | | 1 | | 5 | | 9 | | 14 | | 16 | | 18 | | 19 | | 20 |
| | | | | 1 | | 5 | | 12 | | 17 | | 21 | | 23 | | 25 | | 26 | | 27 |
| | | | 1 | | 6 | | 13 | | 21 | | 26 | | 30 | | 32 | | 34 | | 35 | | 36 |
| | | 1 | | 6 | | 16 | | 25 | | 33 | | 37 | | 41 | | 43 | | 45 | | 46 | | 47 |
| | 1 | | 7 | | 19 | | 32 | | 42 | | 50 | | 54 | | 58 | | 60 | | 62 | | 63 | | 64 |
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A213008 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7
| 3 | 4 | 5 | 7 | 8 | 9 | 12 | 13 | 16 | 19
| 5 | 6 | 9 | 10 | 14 | 17 | 21 | 25 | 32
| 7 | 10 | 12 | 16 | 21 | 26 | 33 | 42
| 11 | 13 | 18 | 23 | 30 | 37 | 50
| 14 | 19 | 25 | 32 | 41 | 54
| 20 | 26 | 34 | 43 | 58
| 27 | 35 | 45 | 60
| 36 | 46 | 62
| 47 | 63
| 64
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A213008 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7
| | | 3 | 4 | 5 | 7 | 8 | 9 | 12 | 13 | 16 | 19
| | | | 5 | 6 | 9 | 10 | 14 | 17 | 21 | 25 | 32
| | | | | 7 | 10 | 12 | 16 | 21 | 26 | 33 | 42
| | | | | | 11 | 13 | 18 | 23 | 30 | 37 | 50
| | | | | | | 14 | 19 | 25 | 32 | 41 | 54
| | | | | | | | 20 | 26 | 34 | 43 | 58
| | | | | | | | | 27 | 35 | 45 | 60
| | | | | | | | | | 36 | 46 | 62
| | | | | | | | | | | 47 | 63
| | | | | | | | | | | | 64
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