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A318005 as a simple table

na(n)
11
24
324
4224
52880
648064
7989184
824218624
9687083520
1022151148544
11799546834944
1231934834253824
131398132497448960
1466573473015578624
153425078687463112704
16189331392774496845824
1711190654534195295027200
18704262689221037166690304
1947015904809670036594622464
203318579148264602406039322624

[1,4,24,224,2880,48064,989184,24218624,687083520,
 22151148544,799546834944,31934834253824,
 1398132497448960,66573473015578624,
 3425078687463112704,189331392774496845824,
 11190654534195295027200,704262689221037166690304,
 47015904809670036594622464,
 3318579148264602406039322624]