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A137755 as a triangular array

5
77
9319
11494911
13712097113
15973513519715
17127545147154512717
191617992561256179916119
2119911214159106254159112119921

A137755 as a square array

579111315171921
731497197127161199
9492093515457991121
1171351147125614159
1397545256110625
151277994159
171611121
19199
21
579111315171921
731497197127161199
9492093515457991121
1171351147125614159
1397545256110625
151277994159
171611121
19199
21