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A279109 as a simple table

na(n)
02
18
248
35760
480640
514515200
6958003200
71394852659200
841845579776000
925609494822912000
104865804016353280000
11528941518954168320000
121240896803466478878720000
131613165844506422542336000000
14609776689223427721003008000000

[2,8,48,5760,80640,14515200,958003200,
 1394852659200,41845579776000,25609494822912000,
 4865804016353280000,528941518954168320000,
 1240896803466478878720000,
 1613165844506422542336000000,
 609776689223427721003008000000]