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A205642 as a simple table

na(n)
1256
22320
32320
421416
528724
621416
7198688
8377568
9377568
10198688
111843744
125079336
138381936
145079336
151843744
1617111320
1769574220
18211610280
19211610280
2069574220
2117111320
22158804736
23962953968
245747728044
2511786800328
265747728044

[256,2320,2320,21416,28724,21416,198688,377568,
 377568,198688,1843744,5079336,8381936,5079336,
 1843744,17111320,69574220,211610280,211610280,
 69574220,17111320,158804736,962953968,5747728044,
 11786800328,5747728044]