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A131239 as a triangular array

1
11
141
1571
1812101
192422131
112335235161
11351859551191
1166414818015670221
1178821234833623892251
120105320560714574344117281
12113542592012741330918477145311

A131239 as a square array

111111111111
14589121316172021
17122433516488105135
110225285148212320425
1133595180348560920
116511563367141274
119702385741330
12292344918
125117477
128145
131
1
111111111111
14589121316172021
17122433516488105135
110225285148212320425
1133595180348560920
116511563367141274
119702385741330
12292344918
125117477
128145
131
1