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A115636 as a triangular array

1
1-1
401
401-1
4-4001
4-4001-1
16040001
16040001-1
1604-400001
1604-400001-1
16-16004000001
16-16004000001-1
16-16004-40000001
16-16004-40000001-1

A115636 as a square array

1144441616161616161616
-100-4-40000-16-16-16-16
110044440000
-10000-4-40000
1100004444
-1000000-4-4
11000000
-1000000
110000
-10000
1100
-100
11
-1
1144441616161616161616
-100-4-40000-16-16-16-16
110044440000
-10000-4-40000
1100004444
-1000000-4-4
11000000
-1000000
110000
-10000
1100
-100
11
-1