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A081088 as a simple table

na(n)
12
22
310
4260
5703300
6128651592765800
711640481755119007104771565805489000
817432395734015190050301181934013684788461125501100342391858949624062957005321114000

[2,2,10,260,703300,128651592765800,
 11640481755119007104771565805489000,
 17432395734015190050301181934013684788461125501100\
 342391858949624062957005321114000]