A146987 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 5 | | 1 |
| | | | | | | | 1 | | 12 | | 12 | | 1 |
| | | | | | | 1 | | 31 | | 60 | | 31 | | 1 |
| | | | | | 1 | | 86 | | 253 | | 253 | | 86 | | 1 |
| | | | | 1 | | 249 | | 987 | | 1478 | | 987 | | 249 | | 1 |
| | | | 1 | | 736 | | 3666 | | 7325 | | 7325 | | 3666 | | 736 | | 1 |
| | | 1 | | 2195 | | 13150 | | 32861 | | 43810 | | 32861 | | 13150 | | 2195 | | 1 |
| | 1 | | 6570 | | 45963 | | 137865 | | 229761 | | 229761 | | 137865 | | 45963 | | 6570 | | 1 |
|
A146987 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 5 | 12 | 31 | 86 | 249 | 736 | 2195 | 6570
| | 1 | 12 | 60 | 253 | 987 | 3666 | 13150 | 45963
| | 1 | 31 | 253 | 1478 | 7325 | 32861 | 137865
| | 1 | 86 | 987 | 7325 | 43810 | 229761
| | 1 | 249 | 3666 | 32861 | 229761
| | 1 | 736 | 13150 | 137865
| | 1 | 2195 | 45963
| | 1 | 6570
| | 1
|
A146987 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 5 | 12 | 31 | 86 | 249 | 736 | 2195 | 6570
| | | 1 | 12 | 60 | 253 | 987 | 3666 | 13150 | 45963
| | | | 1 | 31 | 253 | 1478 | 7325 | 32861 | 137865
| | | | | 1 | 86 | 987 | 7325 | 43810 | 229761
| | | | | | 1 | 249 | 3666 | 32861 | 229761
| | | | | | | 1 | 736 | 13150 | 137865
| | | | | | | | 1 | 2195 | 45963
| | | | | | | | | 1 | 6570
| | | | | | | | | | 1
|
|
