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A128090 as a triangular array

1
-44
-18-189
-48-48-4816
-100-100-100-10025
-180-180-180-180-18036
-294-294-294-294-294-29449

A128090 as a square array

1-4-18-48-100-180-294
4-18-48-100-180-294
9-48-100-180-294
16-100-180-294
25-180-294
36-294
49
1-4-18-48-100-180-294
4-18-48-100-180-294
9-48-100-180-294
16-100-180-294
25-180-294
36-294
49