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A318390 as a simple table

na(n)
11
21
32
41
56
68
71
814
948
1056
111
1230
13200
14560
15552
161
1762
18720
193640
208280
217202
221
23126
242408
2519600
2677280
27151242
28118456
291
30254
317728
3295256
33579600
341915732
353316768
362369922
371
38510
3924200
40435120
413836952
4219056492
4354726672
4485317192
4556230544
461

[1,1,2,1,6,8,1,14,48,56,1,30,200,560,552,1,62,720,
 3640,8280,7202,1,126,2408,19600,77280,151242,
 118456,1,254,7728,95256,579600,1915732,3316768,
 2369922,1,510,24200,435120,3836952,19056492,
 54726672,85317192,56230544,1]