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A371766 as a triangular array

1
11
121
1541
1162171
16514263111
13261201709151161
119571233697092521311221
113700149989157971500457186575291
110960121135462993467115887119376517536981371

A371766 as a square array

1111111111
1251665326195713700109601
14211421201123361499892113546
176370997091579712993467
1111512521500451158871
1163117186193765
12257517536
129981
137
1
1111111111
1251665326195713700109601
14211421201123361499892113546
176370997091579712993467
1111512521500451158871
1163117186193765
12257517536
129981
137
1