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A340727 as a simple table

na(n)
212
348
4240
51440
68640
760480
8604800
95443200
1059875200
11718502400
129340531200
13124540416000
141743565824000
1529640619008000
16502146957312000
178536498274304000
18162193467211776000
193406062811447296000
2068121256228945920000
211498667637036810240000

[12,48,240,1440,8640,60480,604800,5443200,
 59875200,718502400,9340531200,124540416000,
 1743565824000,29640619008000,502146957312000,
 8536498274304000,162193467211776000,
 3406062811447296000,68121256228945920000,
 1498667637036810240000]