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A308088 Normal matrices of order n over GF(2). 0
2, 8, 80, 1472, 56192, 3934208, 557649920, 154665746432 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A matrix A is normal if A^T A = A A^T, where for this sequence multiplication is performed in the field of two elements.

LINKS

Table of n, a(n) for n=1..8.

Eric Weisstein's World of Mathematics, Normal Matrix

Index entries for sequences related to binary matrices

CROSSREFS

A055547 counts 0-1 matrices normal over the integers.

Sequence in context: A230880 A214689 A202999 * A130530 A134529 A289897

Adjacent sequences:  A308085 A308086 A308087 * A308089 A308090 A308091

KEYWORD

nonn,hard,more

AUTHOR

Brendan McKay, May 11 2019

STATUS

approved

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Last modified April 22 07:26 EDT 2021. Contains 343163 sequences. (Running on oeis4.)