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A160577 as a simple table

na(n)
1305
2409
3641
41189
52045
63541
76829
811861
920605
1039785
1169121
12120089
13231881
14402865
15699929
161351501
172348069
184079485
197877125
2013685549
2123776981
2245911249
2379765225
24138582401
25267590369
26464905801
27807717425
281559630965

[305,409,641,1189,2045,3541,6829,11861,20605,
 39785,69121,120089,231881,402865,699929,1351501,
 2348069,4079485,7877125,13685549,23776981,
 45911249,79765225,138582401,267590369,464905801,
 807717425,1559630965]