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A297943 as a triangular array

1
11
151
1771
1184181
1311414311
165163316651
1130517474511301
12531022263302261022531
1519258694103210326942585191
110186672121364039773640212166710181

A297943 as a square array

11111111111
1571831651302535191018
174141651102258667
1181433742266942121
131167433010323640
1655122610323977
11301026943640
12532582121
1519667
11018
1
11111111111
1571831651302535191018
174141651102258667
1181433742266942121
131167433010323640
1655122610323977
11301026943640
12532582121
1519667
11018
1