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A007480 as a simple table

na(n)
11
216
31296
420736
512960000
612960000
731116960000
8497871360000
940327580160000
1040327580160000
11590436101122560000
12590436101122560000
1316863445484161436160000
1416863445484161436160000
1516863445484161436160000
16269815127746582978560000

[1,16,1296,20736,12960000,12960000,31116960000,
 497871360000,40327580160000,40327580160000,
 590436101122560000,590436101122560000,
 16863445484161436160000,16863445484161436160000,
 16863445484161436160000,269815127746582978560000]