A131235 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | | 1 | | 6 | | 6 | | 1 |
| | | | | | | | 1 | | 10 | | 26 | | 10 | | 1 |
| | | | | | | 1 | | 15 | | 79 | | 79 | | 15 | | 1 |
| | | | | | 1 | | 21 | | 189 | | 451 | | 189 | | 21 | | 1 |
| | | | | 1 | | 28 | | 386 | | 1837 | | 1837 | | 386 | | 28 | | 1 |
| | | | 1 | | 36 | | 706 | | 5776 | | 12951 | | 5776 | | 706 | | 36 | | 1 |
| | | 1 | | 45 | | 1191 | | 15085 | | 66021 | | 66021 | | 15085 | | 1191 | | 45 | | 1 |
| | 1 | | 55 | | 1889 | | 34399 | | 258355 | | 551681 | | 258355 | | 34399 | | 1889 | | 55 | | 1 |
|
A131235 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 | 55
| | 1 | 6 | 26 | 79 | 189 | 386 | 706 | 1191 | 1889
| | 1 | 10 | 79 | 451 | 1837 | 5776 | 15085 | 34399
| | 1 | 15 | 189 | 1837 | 12951 | 66021 | 258355
| | 1 | 21 | 386 | 5776 | 66021 | 551681
| | 1 | 28 | 706 | 15085 | 258355
| | 1 | 36 | 1191 | 34399
| | 1 | 45 | 1889
| | 1 | 55
| | 1
|
A131235 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 | 55
| | | 1 | 6 | 26 | 79 | 189 | 386 | 706 | 1191 | 1889
| | | | 1 | 10 | 79 | 451 | 1837 | 5776 | 15085 | 34399
| | | | | 1 | 15 | 189 | 1837 | 12951 | 66021 | 258355
| | | | | | 1 | 21 | 386 | 5776 | 66021 | 551681
| | | | | | | 1 | 28 | 706 | 15085 | 258355
| | | | | | | | 1 | 36 | 1191 | 34399
| | | | | | | | | 1 | 45 | 1889
| | | | | | | | | | 1 | 55
| | | | | | | | | | | 1
|
|
