A276921 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 0 |
| | | | | | | | | | 1 | | 1 | | 0 |
| | | | | | | | | 1 | | 1 | | 2 | | 0 |
| | | | | | | | 1 | | 1 | | 3 | | 6 | | 0 |
| | | | | | | 1 | | 1 | | 3 | | 12 | | 24 | | 0 |
| | | | | | 1 | | 1 | | 3 | | 13 | | 66 | | 120 | | 0 |
| | | | | 1 | | 1 | | 3 | | 13 | | 74 | | 450 | | 720 | | 0 |
| | | | 1 | | 1 | | 3 | | 13 | | 75 | | 530 | | 3690 | | 5040 | | 0 |
| | | 1 | | 1 | | 3 | | 13 | | 75 | | 540 | | 4550 | | 35280 | | 40320 | | 0 |
| | 1 | | 1 | | 3 | | 13 | | 75 | | 541 | | 4670 | | 45570 | | 385560 | | 362880 | | 0 |
|
A276921 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 0 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| | 0 | 6 | 12 | 13 | 13 | 13 | 13 | 13
| | 0 | 24 | 66 | 74 | 75 | 75 | 75
| | 0 | 120 | 450 | 530 | 540 | 541
| | 0 | 720 | 3690 | 4550 | 4670
| | 0 | 5040 | 35280 | 45570
| | 0 | 40320 | 385560
| | 0 | 362880
| | 0
|
A276921 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | | 0 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| | | | 0 | 6 | 12 | 13 | 13 | 13 | 13 | 13
| | | | | 0 | 24 | 66 | 74 | 75 | 75 | 75
| | | | | | 0 | 120 | 450 | 530 | 540 | 541
| | | | | | | 0 | 720 | 3690 | 4550 | 4670
| | | | | | | | 0 | 5040 | 35280 | 45570
| | | | | | | | | 0 | 40320 | 385560
| | | | | | | | | | 0 | 362880
| | | | | | | | | | | 0
|
|
