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A258728 as a simple table

na(n)
12592
25664
313720
435704
592548
6228081
7526672
81183616
92727288
106597449
1116454876
1240863000
1398379104
14230053160
15534172704
161260245516
173043544240
187443617220
1918093595536
2043272115712
21102190186552
22241107878575

[2592,5664,13720,35704,92548,228081,526672,
 1183616,2727288,6597449,16454876,40863000,
 98379104,230053160,534172704,1260245516,
 3043544240,7443617220,18093595536,43272115712,
 102190186552,241107878575]