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A185171 as a simple table

na(n)
12
23
38
418
548
6116
7312
8810
92184
105880
1116104
1244220
13122640
14341484
15956576
162690010
177596480
1821522228
1961171656
20174336264
21498111952
221426403748
234093181688
2411767874940
2533891544368
2697764009000
27282429535752
28817028131140
292366564736720

[2,3,8,18,48,116,312,810,2184,5880,16104,44220,
 122640,341484,956576,2690010,7596480,21522228,
 61171656,174336264,498111952,1426403748,
 4093181688,11767874940,33891544368,97764009000,
 282429535752,817028131140,2366564736720]