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%I #8 Jan 24 2019 10:45:20
%S 0,0,240,10368,395136,15728640,680244480,32256000000,1676208500736,
%T 95105071448064,5863863973294080,390979732037959680,
%U 28060084800000000000,2158269056624017539072,177206054288314912014336,15475174380451335052984320,1432670891083019685105500160,140187732541440000000000000000
%N a(n) = 6*(n - 3)*(n - 4)*2^(n-3)*n^(n-4).
%H Andrei Asinowski, Gill Barequet, Ronnie Barequet, Gunter Rote, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL15/Barequet/barequet2.html">Proper n-Cell Polycubes in n-3 Dimensions</a>, J. Int. Seq. 15 (2012) #12.8.4.
%Y Cf. A232995.
%K nonn
%O 3,3
%A _N. J. A. Sloane_, Dec 16 2013
%E The Asinowski et al. paper contains 10 or 20 further sequences similar to this one, that could be added to the OEIS. I don't have time to do this myself.
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