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A331839 as a simple table

na(n)
02
128
21488
3182880
441207040
514856307200
67847004211200
75713142135500800
85484741986820096000
96713362606110031872000
1010204325758699297505280000
1118857600746080668455403520000
1241637586170036526348967608320000
13108257726461843735266949595136000000
14327371366649945523117538738700288000000

[2,28,1488,182880,41207040,14856307200,
 7847004211200,5713142135500800,
 5484741986820096000,6713362606110031872000,
 10204325758699297505280000,
 18857600746080668455403520000,
 41637586170036526348967608320000,
 108257726461843735266949595136000000,
 327371366649945523117538738700288000000]