A210226 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 2 | | 3 |
| | | | | | | | | | 3 | | 9 | | 5 |
| | | | | | | | | 4 | | 18 | | 24 | | 7 |
| | | | | | | | 5 | | 30 | | 66 | | 51 | | 9 |
| | | | | | | 6 | | 45 | | 140 | | 189 | | 94 | | 11 |
| | | | | | 7 | | 63 | | 255 | | 505 | | 457 | | 157 | | 13 |
| | | | | 8 | | 84 | | 420 | | 1110 | | 1516 | | 976 | | 244 | | 15 |
| | | | 9 | | 108 | | 644 | | 2142 | | 3986 | | 3960 | | 1896 | | 359 | | 17 |
| | | 10 | | 135 | | 936 | | 3766 | | 8960 | | 12338 | | 9276 | | 3419 | | 506 | | 19 |
| | 11 | | 165 |
|
A210226 as a square array
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| 3 | 9 | 18 | 30 | 45 | 63 | 84 | 108 | 135 | 165
| 5 | 24 | 66 | 140 | 255 | 420 | 644 | 936
| 7 | 51 | 189 | 505 | 1110 | 2142 | 3766
| 9 | 94 | 457 | 1516 | 3986 | 8960
| 11 | 157 | 976 | 3960 | 12338
| 13 | 244 | 1896 | 9276
| 15 | 359 | 3419
| 17 | 506
| 19
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A210226 as an upper right triangle
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| | 3 | 9 | 18 | 30 | 45 | 63 | 84 | 108 | 135 | 165
| | | 5 | 24 | 66 | 140 | 255 | 420 | 644 | 936
| | | | 7 | 51 | 189 | 505 | 1110 | 2142 | 3766
| | | | | 9 | 94 | 457 | 1516 | 3986 | 8960
| | | | | | 11 | 157 | 976 | 3960 | 12338
| | | | | | | 13 | 244 | 1896 | 9276
| | | | | | | | 15 | 359 | 3419
| | | | | | | | | 17 | 506
| | | | | | | | | | 19
| | | | | | | | | |
|
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