A055896 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 2 |
| | | | | | | | | 1 | | 6 | | 5 |
| | | | | | | | 1 | | 14 | | 30 | | 15 |
| | | | | | | 1 | | 30 | | 125 | | 150 | | 52 |
| | | | | | 1 | | 62 | | 450 | | 975 | | 780 | | 203 |
| | | | | 1 | | 126 | | 1505 | | 5250 | | 7280 | | 4263 | | 877 |
| | | | 1 | | 254 | | 4830 | | 25515 | | 54600 | | 53998 | | 24556 | | 4140 |
| | | 1 | | 510 | | 15125 | | 116550 | | 361452 | | 537138 | | 405174 | | 149040 | | 21147 |
| | 1 | | 1022 | | 46650 |
|
A055896 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 2 | 6 | 14 | 30 | 62 | 126 | 254 | 510 | 1022
| 5 | 30 | 125 | 450 | 1505 | 4830 | 15125 | 46650
| 15 | 150 | 975 | 5250 | 25515 | 116550
| 52 | 780 | 7280 | 54600 | 361452
| 203 | 4263 | 53998 | 537138
| 877 | 24556 | 405174
| 4140 | 149040
| 21147
|
A055896 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 2 | 6 | 14 | 30 | 62 | 126 | 254 | 510 | 1022
| | | 5 | 30 | 125 | 450 | 1505 | 4830 | 15125 | 46650
| | | | 15 | 150 | 975 | 5250 | 25515 | 116550
| | | | | 52 | 780 | 7280 | 54600 | 361452
| | | | | | 203 | 4263 | 53998 | 537138
| | | | | | | 877 | 24556 | 405174
| | | | | | | | 4140 | 149040
| | | | | | | | | 21147
| | | | | | | | |
|
|