|
| |
|
|
A159407
|
|
Number of nXn arrays of squares of integers summing to 21
|
|
1
| |
|
|
28, 7182, 3923136, 2168352600, 1094602264164, 437181997913808, 123598365410489088, 22732655012770729752, 2620728473996336526900, 193309311936589609598244, 9610726322148658419480768
(list; graph; refs; listen; history; internal format)
|
| |
| |
|
|
