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A250931 as a simple table

na(n)
1166600
228564788
34951389320
4861990961500
5150150624833184
626155302062776044
74556054178258259752
8793631145583485507644
9138244827983794299540724
1024081255554884481109661732

[166600,28564788,4951389320,861990961500,
 150150624833184,26155302062776044,
 4556054178258259752,793631145583485507644,
 138244827983794299540724,
 24081255554884481109661732]