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A157982
as
a triangular array
1
1
2
-1
0
6
1
0
-6
4
-19
0
120
-120
30
27
A157982
as
a square array
1
1
-1
1
-19
27
2
0
0
0
6
-6
120
4
-120
30
A157982
as
an upper right triangle
1
1
-1
1
-19
27
2
0
0
0
6
-6
120
4
-120
30