|
| |
|
|
A156439
|
|
Number of nXn arrays of squares of integers, symmetric under 90 degree rotation, with all rows summing to 5.
|
|
0
| |
|
|
2, 3, 0, 0, 480, 2400, 0, 0, 7574400, 66083040, 0, 0, 896812758240, 10058239033920, 0, 0, 374736233227188672, 5125335197750964000, 0, 0
(list; graph; refs; listen; history; internal format)
|
| |
| |
|
|
