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A250510 as a triangular array

19683
274625274625
344295176152333442951
3759537518402114118402114137595375
371694959372646632583384424353726466325371694959
343611522966217800903305746039533305746039533662178009033436115229

A250510 as a square array

196832746253442951375953753716949593436115229
2746257615233184021141372646632566217800903
34429511840211418338442435305746039533
375953753726466325305746039533
37169495966217800903
3436115229
196832746253442951375953753716949593436115229
2746257615233184021141372646632566217800903
34429511840211418338442435305746039533
375953753726466325305746039533
37169495966217800903
3436115229