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A252053 as a triangular array

1552
24402440
281224542812
3494255225523494
51923030267430305192
764261364390439061367642
1008410324101146562101141032410084
1509614924171661653616536171661492415096
220902899026840

A252053 as a square array

155224402812349451927642100841509622090
24402454255230306136103241492428990
2812255226744390101141716626840
349430304390656216536
519261361011416536
76421032417166
1008414924
15096
155224402812349451927642100841509622090
24402454255230306136103241492428990
2812255226744390101141716626840
349430304390656216536
519261361011416536
76421032417166
1008414924
15096