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A152349 as a simple table

na(n)
11
22
36
424
5120
6608
73684
823136
9185772
101557704
1114531768
12142953580
131530728460
1417401543208
15210735290068
162698171998814

[1,2,6,24,120,608,3684,23136,185772,1557704,
 14531768,142953580,1530728460,17401543208,
 210735290068,2698171998814]