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A252313 as a simple table

na(n)
11557
21974
32493
423422
5505062
617562749
7937981280
877093724660
99818091215415
101923038551367392
11579363831611000707
12269256446506102901260
13192945586040744107580301

[1557,1974,2493,23422,505062,17562749,937981280,
 77093724660,9818091215415,1923038551367392,
 579363831611000707,269256446506102901260,
 192945586040744107580301]