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A375524 as a simple table

na(n)
11
22
36
412
560
620
7140
8280
92520
1027720
1127720
12360360
13360360
14360360
15720720
1612252240
174084080
1877597520
1977597520
2077597520
211784742960
221784742960
238923714800
248923714800
2580313433200
2611473347600
27332727080400
28332727080400
2910314539492400
30937685408400
31937685408400

[1,2,6,12,60,20,140,280,2520,27720,27720,360360,
 360360,360360,720720,12252240,4084080,77597520,
 77597520,77597520,1784742960,1784742960,
 8923714800,8923714800,80313433200,11473347600,
 332727080400,332727080400,10314539492400,
 937685408400,937685408400]