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A251845 as a triangular array

974
981981
641508641
872828828872
14431229180312291443
195126722890289026721951
2784543885825860858254382784
494996472174818708187082174896474949
78972261040492486927981748692

A251845 as a square array

97498164187214431951278449497897
981508828122926725438964722610
6418281803289085822174840492
8721229289058601870848692
1443267285821870879817
195154382174848692
27849647
4949
97498164187214431951278449497897
981508828122926725438964722610
6418281803289085822174840492
8721229289058601870848692
1443267285821870879817
195154382174848692
27849647
4949