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A145599 as a triangular array

1
55
153515
3514014035
7042072042070
1261050270027001050126
210231082501237582502310210
3304620217804537545375217804620330
495858051480141570196625141570514808580495
71515015

A145599 as a square array

15153570126210330495715
535140420105023104620858015015
15140720270082502178051480
3542027001237545375141570
701050825045375196625
126231021780141570
210462051480
3308580
495
15153570126210330495715
535140420105023104620858015015
15140720270082502178051480
3542027001237545375141570
701050825045375196625
126231021780141570
210462051480
3308580
495