A111549 as a triangular array
| | | | | | | | | | 0 |
| | | | | | | | | | 1 | | 0 |
| | | | | | | | | 4 | | 2 | | 0 |
| | | | | | | | 23 | | 6 | | 3 | | 0 |
| | | | | | | 165 | | 32 | | 9 | | 4 | | 0 |
| | | | | | 1383 | | 222 | | 47 | | 13 | | 5 | | 0 |
| | | | | 13083 | | 1824 | | 321 | | 70 | | 18 | | 6 | | 0 |
| | | | 136863 | | 17016 | | 2607 | | 486 | | 103 | | 24 | | 7 | | 0 |
| | | 1562715 | | 176112 | | 24099 | | 3990 | | 747 | | 148 | | 31 | | 8 | | 0 |
| | 19301319 | | 1993392 | | 247527 | | 37182 | | 6351 | | 1140 | | 207 | | 39 | | 9 | | 0 |
|
A111549 as a square array
0 | 1 | 4 | 23 | 165 | 1383 | 13083 | 136863 | 1562715 | 19301319
| 0 | 2 | 6 | 32 | 222 | 1824 | 17016 | 176112 | 1993392
| 0 | 3 | 9 | 47 | 321 | 2607 | 24099 | 247527
| 0 | 4 | 13 | 70 | 486 | 3990 | 37182
| 0 | 5 | 18 | 103 | 747 | 6351
| 0 | 6 | 24 | 148 | 1140
| 0 | 7 | 31 | 207
| 0 | 8 | 39
| 0 | 9
| 0
|
A111549 as an upper right triangle
0 | 1 | 4 | 23 | 165 | 1383 | 13083 | 136863 | 1562715 | 19301319
| | 0 | 2 | 6 | 32 | 222 | 1824 | 17016 | 176112 | 1993392
| | | 0 | 3 | 9 | 47 | 321 | 2607 | 24099 | 247527
| | | | 0 | 4 | 13 | 70 | 486 | 3990 | 37182
| | | | | 0 | 5 | 18 | 103 | 747 | 6351
| | | | | | 0 | 6 | 24 | 148 | 1140
| | | | | | | 0 | 7 | 31 | 207
| | | | | | | | 0 | 8 | 39
| | | | | | | | | 0 | 9
| | | | | | | | | | 0
|
|