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A060410 as a simple table

na(n)
12
28
326
480
54616
66560
719682
820762
9125252
10638468
113405068
124076810
1313557212
1425071632
1553179010
1660506432
17296639576
18785412368
191241055674
201399161680
218601188876
2212324038948
2326241642656
2428495741760

[2,8,26,80,4616,6560,19682,20762,125252,638468,
 3405068,4076810,13557212,25071632,53179010,
 60506432,296639576,785412368,1241055674,
 1399161680,8601188876,12324038948,26241642656,
 28495741760]