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A127670 as a simple table

na(n)
11
24
332
4400
56912
6153664
74194304
8136048896
95120000000
10219503494144
1110567230160896
12564668382613504
1333174037869887488
142125764000000000000
15147573952589676412928
1611034809241396899282944
17884295678882933431599104

[1,4,32,400,6912,153664,4194304,136048896,
 5120000000,219503494144,10567230160896,
 564668382613504,33174037869887488,
 2125764000000000000,147573952589676412928,
 11034809241396899282944,884295678882933431599104]