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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

Table of n, a(n) for n=3..20.

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

Adjacent sequences:  A232991 A232992 A232993 * A232995 A232996 A232997

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 September 25 06:22 EDT 2022. Contains 356959 sequences. (Running on oeis4.)