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A186484 as a triangular array

625
419419
32658393265
3335171517153335
17608587917015587917608
196171025915061150611025919617
89163286288965064680896502862889163
11070753045852691007891007898526953045110707
459455

A186484 as a square array

62541932653335176081961789163110707459455
41983917155879102592862853045
3265171517015150618965085269
333558791506164680100789
176081025989650100789
196172862885269
8916353045
110707
62541932653335176081961789163110707459455
41983917155879102592862853045
3265171517015150618965085269
333558791506164680100789
176081025989650100789
196172862885269
8916353045
110707