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A282164 as a simple table

na(n)
11
21
32
42
54
66
712
824
948
10120
11240
12720
131440
144320
158640
1625920
1760480
18181440
19483840
201451520
213870720
2211612160
2334836480
24104509440
25348364800
261045094400
273483648000
2810450944000
2938320128000
30114960384000
31459841536000
321379524608000
335518098432000
3416554295296000

[1,1,2,2,4,6,12,24,48,120,240,720,1440,4320,8640,
 25920,60480,181440,483840,1451520,3870720,
 11612160,34836480,104509440,348364800,1045094400,
 3483648000,10450944000,38320128000,114960384000,
 459841536000,1379524608000,5518098432000,
 16554295296000]