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A129743 as a simple table

na(n)
12
212
350
4192
5722
62700
710082
837632
9140450
10524172
111956242
127300800
1327246962
14101687052
15379501250
161416317952
175285770562
1819726764300
1973621286642
20274758382272
211025412242450
223826890587532
2314282150107682
2453301709843200
25198924689265122
26742397047217292

[2,12,50,192,722,2700,10082,37632,140450,524172,
 1956242,7300800,27246962,101687052,379501250,
 1416317952,5285770562,19726764300,73621286642,
 274758382272,1025412242450,3826890587532,
 14282150107682,53301709843200,198924689265122,
 742397047217292]