A187005 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 2 | | 2 |
| | | | | | | | | 1 | | 3 | | 6 | | 8 |
| | | | | | | | 1 | | 4 | | 12 | | 29 | | 50 |
| | | | | | | 1 | | 5 | | 20 | | 69 | | 202 | | 436 |
| | | | | | 1 | | 6 | | 30 | | 134 | | 538 | | 1880 | | 4912 |
| | | | | 1 | | 7 | | 42 | | 230 | | 1164 | | 5404 | | 22108 | | 68098 |
| | | | 1 | | 8 | | 56 | | 363 | | 2210 | | 12646 | | 67092 | | 315784 | | 1122952 |
| | | 1 | | 9 | | 72 | | 539 | | 3830 | | 25930 | | 166520 | | 997581 | | 5322126 | | 21488640 |
| | 1 |
|
A187005 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| | 2 | 6 | 12 | 20 | 30 | 42 | 56 | 72
| | 8 | 29 | 69 | 134 | 230 | 363 | 539
| | 50 | 202 | 538 | 1164 | 2210 | 3830
| | 436 | 1880 | 5404 | 12646 | 25930
| | 4912 | 22108 | 67092 | 166520
| | 68098 | 315784 | 997581
| | 1122952 | 5322126
| | 21488640
|
A187005 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| | | 2 | 6 | 12 | 20 | 30 | 42 | 56 | 72
| | | | 8 | 29 | 69 | 134 | 230 | 363 | 539
| | | | | 50 | 202 | 538 | 1164 | 2210 | 3830
| | | | | | 436 | 1880 | 5404 | 12646 | 25930
| | | | | | | 4912 | 22108 | 67092 | 166520
| | | | | | | | 68098 | 315784 | 997581
| | | | | | | | | 1122952 | 5322126
| | | | | | | | | | 21488640
| | | | | | | | | |
|
|
