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A251983 as a triangular array

2930
98229822
416827322241682
138390516108516108138390
463054270351243790342703512463054
1762248163244142623004026230040163244141762248
6881308113817844196459816153525420196459816

A251983 as a square array

293098224168213839046305417622486881308
982273222516108270351216324414113817844
41682516108437903426230040196459816
138390270351226230040153525420
46305416324414196459816
1762248
293098224168213839046305417622486881308
982273222516108270351216324414113817844
41682516108437903426230040196459816
138390270351226230040153525420
46305416324414196459816
1762248