A206987 as a triangular array
| | | | | | | | | | 2 |
| | | | | | | | | | 4 | | 4 |
| | | | | | | | | 6 | | 16 | | 6 |
| | | | | | | | 10 | | 36 | | 36 | | 10 |
| | | | | | | 16 | | 100 | | 58 | | 100 | | 16 |
| | | | | | 26 | | 256 | | 158 | | 158 | | 256 | | 26 |
| | | | | 42 | | 676 | | 420 | | 556 | | 420 | | 676 | | 42 |
| | | | 68 | | 1764 | | 1066 | | 1866 | | 1866 | | 1066 | | 1764 | | 68 |
| | | 110 | | 4624 | | 2754 | | 5804 | | 7500 | | 5804 | | 2754 | | 4624 | | 110 |
| | 178 | | 12100 | | 7140 | | 18528 | | 27762 | | 27762 | | 18528 |
|
A206987 as a square array
2 | 4 | 6 | 10 | 16 | 26 | 42 | 68 | 110 | 178
| 4 | 16 | 36 | 100 | 256 | 676 | 1764 | 4624 | 12100
| 6 | 36 | 58 | 158 | 420 | 1066 | 2754 | 7140
| 10 | 100 | 158 | 556 | 1866 | 5804 | 18528
| 16 | 256 | 420 | 1866 | 7500 | 27762
| 26 | 676 | 1066 | 5804 | 27762
| 42 | 1764 | 2754 | 18528
| 68 | 4624
| 110
|
A206987 as an upper right triangle
2 | 4 | 6 | 10 | 16 | 26 | 42 | 68 | 110 | 178
| | 4 | 16 | 36 | 100 | 256 | 676 | 1764 | 4624 | 12100
| | | 6 | 36 | 58 | 158 | 420 | 1066 | 2754 | 7140
| | | | 10 | 100 | 158 | 556 | 1866 | 5804 | 18528
| | | | | 16 | 256 | 420 | 1866 | 7500 | 27762
| | | | | | 26 | 676 | 1066 | 5804 | 27762
| | | | | | | 42 | 1764 | 2754 | 18528
| | | | | | | | 68 | 4624
| | | | | | | | | 110
| | | | | | | | |
|
|