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A293143 as a simple table

na(n)
04
116
296
3688
45280
541584
6330720
72639920
821101856
9168762352
101349941344
1110799058352
1286391049632
13691124145520
145528980409568
1544231805012784
16353854325311008
172830834258114288
1822646673031792992
19181173381154980016

[4,16,96,688,5280,41584,330720,2639920,21101856,
 168762352,1349941344,10799058352,86391049632,
 691124145520,5528980409568,44231805012784,
 353854325311008,2830834258114288,
 22646673031792992,181173381154980016]