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A057965 as a simple table

na(n)
41
555
610
71815
8660
965
1046585
1125410
125005
13350
141024870
15745360
16220220
1730800
181701
1920292426
2018447660
217267260
221524600
23168399
247770
25372027810
26405848520
27199849650
2855902000
299261945
30854700
3134105
326430766430

[1,55,10,1815,660,65,46585,25410,5005,350,1024870,
 745360,220220,30800,1701,20292426,18447660,
 7267260,1524600,168399,7770,372027810,405848520,
 199849650,55902000,9261945,854700,34105,
 6430766430]