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A126331 as a triangular array

1
41
1791
7763141
371406134191
189025351095230241
100951566082402269351291
560409663559129199364053497341
320795598344412216162862406986572668391

A126331 as a square array

14177737118901009556040320795
196340625351566096635598344
1141341095824059129412216
119230226919936162862
124351405340698
1294976572
134668
139
1
14177737118901009556040320795
196340625351566096635598344
1141341095824059129412216
119230226919936162862
124351405340698
1294976572
134668
139
1