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Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A348200 as a simple table

na(n)
11
23
312
460
5660
69240
7157080
82984520
968643960
103226266120

[1,3,12,60,660,9240,157080,2984520,68643960,
 3226266120]