A034781 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | | 1 | | 4 | | 3 | | 1 |
| | | | | | | | 1 | | 6 | | 8 | | 4 | | 1 |
| | | | | | | 1 | | 10 | | 18 | | 13 | | 5 | | 1 |
| | | | | | 1 | | 14 | | 38 | | 36 | | 19 | | 6 | | 1 |
| | | | | 1 | | 21 | | 76 | | 93 | | 61 | | 26 | | 7 | | 1 |
| | | | 1 | | 29 | | 147 | | 225 | | 180 | | 94 | | 34 | | 8 | | 1 |
| | | 1 | | 41 | | 277 | | 528 | | 498 | | 308 | | 136 | | 43 | | 9 | | 1 |
| | 1 | | 55 | | 509 | | 1198 | | 1323 | | 941 | | 487 | | 188 | | 53 | | 10 | | 1 |
|
A034781 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 4 | 6 | 10 | 14 | 21 | 29 | 41 | 55
| | 1 | 3 | 8 | 18 | 38 | 76 | 147 | 277 | 509
| | 1 | 4 | 13 | 36 | 93 | 225 | 528 | 1198
| | 1 | 5 | 19 | 61 | 180 | 498 | 1323
| | 1 | 6 | 26 | 94 | 308 | 941
| | 1 | 7 | 34 | 136 | 487
| | 1 | 8 | 43 | 188
| | 1 | 9 | 53
| | 1 | 10
| | 1
|
A034781 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 4 | 6 | 10 | 14 | 21 | 29 | 41 | 55
| | | 1 | 3 | 8 | 18 | 38 | 76 | 147 | 277 | 509
| | | | 1 | 4 | 13 | 36 | 93 | 225 | 528 | 1198
| | | | | 1 | 5 | 19 | 61 | 180 | 498 | 1323
| | | | | | 1 | 6 | 26 | 94 | 308 | 941
| | | | | | | 1 | 7 | 34 | 136 | 487
| | | | | | | | 1 | 8 | 43 | 188
| | | | | | | | | 1 | 9 | 53
| | | | | | | | | | 1 | 10
| | | | | | | | | | | 1
|
|
