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A075264 as a triangular array

1
53
651
50248515015
760802305503
1526961711507380115435157563
2523362957481390203381745153159
513608166233320431231500843797513347601241106300135
8886412811094177658415444

A075264 as a square array

1565027601526962523365136081688864128
3548580217115029574862333204110941776
1150305738011390203123150058415444
155015435338178437975
3157545151334760
63315124110
96300
135
1565027601526962523365136081688864128
3548580217115029574862333204110941776
1150305738011390203123150058415444
155015435338178437975
3157545151334760
63315124110
96300
135