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A152327 as a simple table

na(n)
11
22
36
424
596
6520
72888
819068
9145020
101138148
1110214074
1294526080
13967610930
1410343591120
15123439408674
161576525675134

[1,2,6,24,96,520,2888,19068,145020,1138148,
 10214074,94526080,967610930,10343591120,
 123439408674,1576525675134]