A056858 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | | 1 | | 6 | | 7 | | 1 |
| | | | | | | | 1 | | 10 | | 26 | | 14 | | 1 |
| | | | | | | 1 | | 15 | | 71 | | 89 | | 26 | | 1 |
| | | | | | 1 | | 21 | | 161 | | 380 | | 267 | | 46 | | 1 |
| | | | | 1 | | 28 | | 322 | | 1268 | | 1709 | | 732 | | 79 | | 1 |
| | | | 1 | | 36 | | 588 | | 3571 | | 8136 | | 6794 | | 1887 | | 133 | | 1 |
| | | 1 | | 45 | | 1002 | | 8878 | | 31532 | | 44924 | | 24717 | | 4654 | | 221 | | 1 |
| | 1 | | 55 | | 1617 | | 20053 | | 104927 | | 234412 | | 221857 | | 84170 | | 11113 | | 364 | | 1 |
|
A056858 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 | 7 | 26 | 71 | 161 | 322 | 588 | 1002 | 1617
| | 1 | 14 | 89 | 380 | 1268 | 3571 | 8878 | 20053
| | 1 | 26 | 267 | 1709 | 8136 | 31532 | 104927
| | 1 | 46 | 732 | 6794 | 44924 | 234412
| | 1 | 79 | 1887 | 24717 | 221857
| | 1 | 133 | 4654 | 84170
| | 1 | 221 | 11113
| | 1 | 364
| | 1
|
A056858 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 | 7 | 26 | 71 | 161 | 322 | 588 | 1002 | 1617
| | | | 1 | 14 | 89 | 380 | 1268 | 3571 | 8878 | 20053
| | | | | 1 | 26 | 267 | 1709 | 8136 | 31532 | 104927
| | | | | | 1 | 46 | 732 | 6794 | 44924 | 234412
| | | | | | | 1 | 79 | 1887 | 24717 | 221857
| | | | | | | | 1 | 133 | 4654 | 84170
| | | | | | | | | 1 | 221 | 11113
| | | | | | | | | | 1 | 364
| | | | | | | | | | | 1
|
|
