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A157523 as a triangular array

1
11
151
115151
13795371
182463463821
11731910379919101731
13567096256722567270963561
172324645150994260519150994246457231
1145881499804875225990322599038048758149914581

A157523 as a square array

1111111111
151537821733567231458
11595463191070962464581499
137463379925672150994804875
1821910256722605192259903
117370961509942259903
135624645804875
172381499
11458
1
1111111111
151537821733567231458
11595463191070962464581499
137463379925672150994804875
1821910256722605192259903
117370961509942259903
135624645804875
172381499
11458
1