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 A006383 Number of equivalence classes of n X n binary matrices when one can permute rows, permute columns and complement columns. (Formerly M2701) 4
 1, 1, 3, 7, 41, 299, 6128, 343656, 67013431, 45770163273, 108577103160005, 886929528971819040, 24943191706060101926577, 2425246700258693990625775794, 820270898724825121532156178527106 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 REFERENCES N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS Sean A. Irvine, Table of n, a(n) for n = 0..35 M. A. Harrison, On the number of classes of binary matrices, IEEE Trans. Computers, 22 (1973), 1048-1051. M. A. Harrison, On the number of classes of binary matrices, IEEE Transactions on Computers, C-22.12 (1973), 1048-1052. (Annotated scanned copy) EXAMPLE a(2) = 3: 00 10 11 00 00 00 CROSSREFS Cf. A002724, A005232, A006381, A006382, A056204, A056205. Sequence in context: A018968 A018969 A018971 * A181148 A179907 A080581 Adjacent sequences:  A006380 A006381 A006382 * A006384 A006385 A006386 KEYWORD nonn,nice,easy AUTHOR EXTENSIONS Definition corrected by Brendan McKay, Jan 07 2007 Terms a(7) onward from Max Alekseyev, Feb 05 2010 STATUS approved

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Last modified October 22 05:29 EDT 2019. Contains 328315 sequences. (Running on oeis4.)