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A263424 as a triangular array

1
11
242
436364
619612721966
996126244262449619
1553295326201993744532620532915
252958411751184141086884141086884117511842958425
401600002560529401080809744434502512032

A263424 as a square array

112469152540
1436196961532929584160000
23612722624453262011751184256052940
419626244199374414108688410808097444
696153262014108688434502512032
9532911751184
1529584
25
112469152540
1436196961532929584160000
23612722624453262011751184256052940
419626244199374414108688410808097444
696153262014108688434502512032
9532911751184
1529584
25