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A232994 a(n) = 6*(n - 3)*(n - 4)*2^(n-3)*n^(n-4). 1
0, 0, 240, 10368, 395136, 15728640, 680244480, 32256000000, 1676208500736, 95105071448064, 5863863973294080, 390979732037959680, 28060084800000000000, 2158269056624017539072, 177206054288314912014336, 15475174380451335052984320, 1432670891083019685105500160, 140187732541440000000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET
3,3
LINKS
Andrei Asinowski, Gill Barequet, Ronnie Barequet, Gunter Rote, Proper n-Cell Polycubes in n-3 Dimensions, J. Int. Seq. 15 (2012) #12.8.4.
CROSSREFS
Cf. A232995.
Sequence in context: A187167 A282227 A268902 * A023906 A292883 A292075
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Dec 16 2013
EXTENSIONS
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.
STATUS
approved

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Last modified April 14 12:23 EDT 2024. Contains 371661 sequences. (Running on oeis4.)