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A348642 as a simple table

na(n)
12
24
312
424
572
6240
7720
81440
97200
1020160
1160480
12201600
13604800
141693440
1513305600
1626611200
1779833600
18372556800
191117670400
203512678400
2120756736000
2258118860800
23174356582400
24581188608000
252739889152000
267671689625600
2745332711424000
28118562476032000

[2,4,12,24,72,240,720,1440,7200,20160,60480,
 201600,604800,1693440,13305600,26611200,79833600,
 372556800,1117670400,3512678400,20756736000,
 58118860800,174356582400,581188608000,
 2739889152000,7671689625600,45332711424000,
 118562476032000]