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A224879 Number of inequivalent nonsingular n X n binary matrices, where equivalence means permutations of rows or columns. 0
1, 2, 7, 51, 885, 44206, 6843555 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

Finley Freibert, The Classification of Complementary Information Set Codes of Lengths 14 and 16, Advances in Mathematics of Communications, Vol. 7, No. 3 (2013), 267-278.

N. Ilievska, D. Gligoroski, Error-Detecting Code Using Linear Quasigroups, ICT Innovations 2014, Advances in Intelligent Systems and Computing Volume 311, 2015, pp 309-318.

CROSSREFS

Sequence in context: A086902 A265042 A249754 * A279198 A220092 A138737

Adjacent sequences:  A224876 A224877 A224878 * A224880 A224881 A224882

KEYWORD

nonn,hard,more

AUTHOR

Finley Freibert, Jul 23 2013

STATUS

approved

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Last modified October 17 16:34 EDT 2018. Contains 316285 sequences. (Running on oeis4.)