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A048665 Number of rooted 4-dimensional "polycubes" with n cells, with no symmetries removed. 0
1, 8, 84, 936, 10810, 127632, 1531180, 18589840, 227826873, 2813450960, 34963217388, 436807761192, 5482017092760, 69070750692496, 873243394317660, 11073530439895728 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..16.

R. C. Schroeppel, A few mathematical experiments, Experimental Mathematics Workshop, Oakland, 2004.

FORMULA

a(n) = n * A151830(n). - Andrew Howroyd, Dec 05 2018

CROSSREFS

Row 4 of A048790.

Cf. A048663, A151830.

Sequence in context: A264710 A143868 A130591 * A005797 A233835 A300993

Adjacent sequences:  A048662 A048663 A048664 * A048666 A048667 A048668

KEYWORD

nonn

AUTHOR

Dan Hoey

EXTENSIONS

a(10)-a(16) from Andrew Howroyd, Dec 05 2018

STATUS

approved

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Last modified July 9 22:46 EDT 2020. Contains 335570 sequences. (Running on oeis4.)