A250877 as a triangular array
| | | | | | | | 90 |
| | | | | | | | 288 | | 440 |
| | | | | | | 678 | | 1456 | | 2002 |
| | | | | | 1328 | | 3442 | | 6812 | | 8736 |
| | | | | 2306 | | 6728 | | 16262 | | 30360 | | 37130 |
| | | | 3680 | | 11644 | | 31928 | | 73122 | | 131068 | | 155080 |
| | | 5518 | | 18520 | | 55386 | | 144248 | | 317878 | | 553736 | | 640002 |
| | 7888 | | 27686 | | 88212 | | 250964 | | 629528 | | 1350002 | | 2304492 |
|
A250877 as a square array
90 | 288 | 678 | 1328 | 2306 | 3680 | 5518 | 7888
| 440 | 1456 | 3442 | 6728 | 11644 | 18520 | 27686
| 2002 | 6812 | 16262 | 31928 | 55386 | 88212
| 8736 | 30360 | 73122 | 144248 | 250964
| 37130 | 131068 | 317878 | 629528
| 155080 | 553736 | 1350002
| 640002 | 2304492
|
A250877 as an upper right triangle
90 | 288 | 678 | 1328 | 2306 | 3680 | 5518 | 7888
| | 440 | 1456 | 3442 | 6728 | 11644 | 18520 | 27686
| | | 2002 | 6812 | 16262 | 31928 | 55386 | 88212
| | | | 8736 | 30360 | 73122 | 144248 | 250964
| | | | | 37130 | 131068 | 317878 | 629528
| | | | | | 155080 | 553736 | 1350002
| | | | | | | 640002 | 2304492
| | | | | | |
|
|