A163940 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 0 |
| | | | | | | | | | 1 | | 2 | | 0 |
| | | | | | | | | 1 | | 5 | | 3 | | 0 |
| | | | | | | | 1 | | 9 | | 17 | | 4 | | 0 |
| | | | | | | 1 | | 14 | | 52 | | 49 | | 5 | | 0 |
| | | | | | 1 | | 20 | | 121 | | 246 | | 129 | | 6 | | 0 |
| | | | | 1 | | 27 | | 240 | | 834 | | 1039 | | 321 | | 7 | | 0 |
| | | | 1 | | 35 | | 428 | | 2250 | | 5037 | | 4083 | | 769 | | 8 | | 0 |
| | | 1 | | 44 | | 707 | | 5214 | | 18201 | | 27918 | | 15274 | | 1793 | | 9 | | 0 |
| | 1 | | 54 | | 1102 | | 10829 | | 54111 | | 133530 | | 145777 | | 55152 | | 4097 | | 10 | | 0 |
|
A163940 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 0 | 2 | 5 | 9 | 14 | 20 | 27 | 35 | 44 | 54
| 0 | 3 | 17 | 52 | 121 | 240 | 428 | 707 | 1102
| 0 | 4 | 49 | 246 | 834 | 2250 | 5214 | 10829
| 0 | 5 | 129 | 1039 | 5037 | 18201 | 54111
| 0 | 6 | 321 | 4083 | 27918 | 133530
| 0 | 7 | 769 | 15274 | 145777
| 0 | 8 | 1793 | 55152
| 0 | 9 | 4097
| 0 | 10
| 0
|
A163940 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 0 | 2 | 5 | 9 | 14 | 20 | 27 | 35 | 44 | 54
| | | 0 | 3 | 17 | 52 | 121 | 240 | 428 | 707 | 1102
| | | | 0 | 4 | 49 | 246 | 834 | 2250 | 5214 | 10829
| | | | | 0 | 5 | 129 | 1039 | 5037 | 18201 | 54111
| | | | | | 0 | 6 | 321 | 4083 | 27918 | 133530
| | | | | | | 0 | 7 | 769 | 15274 | 145777
| | | | | | | | 0 | 8 | 1793 | 55152
| | | | | | | | | 0 | 9 | 4097
| | | | | | | | | | 0 | 10
| | | | | | | | | | | 0
|
|