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A198642 as a triangular array

4
3636
3762436376
39361627761627763936
4121610937316701459161093731641216
4316167349791363018938001630189380016734979136431616
451993649393306556130043276875568343620379565613004327687556

A198642 as a square array

4363763936412164316164519936
3624361627761093731673497913649393306556
376162776701459163018938001613004327687556
3936109373163018938001683436203795656
4121673497913613004327687556
431616
4363763936412164316164519936
3624361627761093731673497913649393306556
376162776701459163018938001613004327687556
3936109373163018938001683436203795656
4121673497913613004327687556
431616