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A156766 as a triangular array

1
11
181
178781
196093609601
11452017424001742400145201
126208047567520058544640004756752002620801
15508720180465667200335943780480003359437804800018046566720055087201
1132249600910657520640003059809269350400004627961519892480000305980926935040000910657520640001322496001

A156766 as a square array

111111111
1878960145202620805508720132249600
1789360174240047567520018046566720091065752064000
19601742400585446400033594378048000305980926935040000
114520475675200335943780480004627961519892480000
1262080180465667200305980926935040000
1550872091065752064000
1132249600
1
111111111
1878960145202620805508720132249600
1789360174240047567520018046566720091065752064000
19601742400585446400033594378048000305980926935040000
114520475675200335943780480004627961519892480000
1262080180465667200305980926935040000
1550872091065752064000
1132249600
1