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A277809 as a triangular array

2
36
301510
51421210
7035462115522
1053305591039858
4233200250057293033151870
7770214571485292651879699690
1547739039272487101130523860211154643546
2315469130944408951524902150593763670874002
2310136517017017017114114986723064861078282205620310134857130

A277809 as a square array

23305701054271542312310
615143533033770775461365
1021462552002214539091170170
210115591050057143927309417017
22397293085248710440895114114
85833152926113051524909867
18705187238602215052306486
9699690111546435937636701078282205
4687620310
400213485
7130
23305701054271542312310
615143533033770775461365
1021462552002214539091170170
210115591050057143927309417017
22397293085248710440895114114
85833152926113051524909867
18705187238602215052306486
9699690111546435937636701078282205
4687620310
400213485
7130