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A126791 as a triangular array

1
41
1771
7539101
33920270131
15581015425110161
724750282400771159191
34016247311299948721267217221
160795121208686002888288901940284251
764388593019355890164136

A126791 as a square array

1417753391558724734016160795764388
17392021015502824731121208593019
1107042524001299968600355890
113110771487228882164136
11615912678890
1192171940
122284
125
1
1417753391558724734016160795764388
17392021015502824731121208593019
1107042524001299968600355890
113110771487228882164136
11615912678890
1192171940
122284
125
1