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A182831 as a triangular array

1
23
468
5111722
714284555
9193770112137
10234893171276334
122657118228417671812
133166141287556101016271965
1534771643446971347244439344751
1639

A182831 as a square array

1245791012131516
361114192326313439
817283748576677
22457093118141164
55112171228287344
137276417556697
33467110101347
81216272444
19653934
4751
1245791012131516
361114192326313439
817283748576677
22457093118141164
55112171228287344
137276417556697
33467110101347
81216272444
19653934
4751