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A358293 as a triangular array

4
7272
4321024432
1600540054001600
45001843226244184324500
105844900084672846724900010584
2195211059221600026214421600011059221952
4147222226447239264800064800047239222226441472
7290040960092610013824001562500138240092610040960072900

A358293 as a square array

4724321600450010584219524147272900
72102454001843249000110592222264409600
43254002624484672216000472392926100
160018432846722621446480001382400
4500490002160006480001562500
105841105924723921382400
21952222264926100
41472409600
72900
4724321600450010584219524147272900
72102454001843249000110592222264409600
43254002624484672216000472392926100
160018432846722621446480001382400
4500490002160006480001562500
105841105924723921382400
21952222264926100
41472409600
72900