cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A006383 Number of equivalence classes of n X n binary matrices when one can permute rows, permute columns and complement columns.

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%I A006383 M2701 #33 May 30 2023 15:51:03
%S A006383 1,1,3,7,41,299,6128,343656,67013431,45770163273,108577103160005,
%T A006383 886929528971819040,24943191706060101926577,
%U A006383 2425246700258693990625775794,820270898724825121532156178527106
%N A006383 Number of equivalence classes of n X n binary matrices when one can permute rows, permute columns and complement columns.
%D A006383 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H A006383 Andrew Howroyd, <a href="/A006383/b006383.txt">Table of n, a(n) for n = 0..50</a> (terms 0..35 from Sean A. Irvine)
%H A006383 M. A. Harrison, <a href="http://dx.doi.org/10.1109/T-C.1973.223649">On the number of classes of binary matrices</a>, IEEE Trans. Computers, 22 (1973), 1048-1051.
%H A006383 M. A. Harrison, <a href="/A000711/a000711.pdf">On the number of classes of binary matrices</a>, IEEE Transactions on Computers, C-22.12 (1973), 1048-1052. (Annotated scanned copy)
%H A006383 <a href="/index/Mat#binmat">Index entries for sequences related to binary matrices</a>
%e A006383 a(2) = 3:
%e A006383 00 10 11
%e A006383 00 00 00
%Y A006383 Main diagonal of A363349.
%Y A006383 Cf. A002724, A005232, A006381, A006382, A056204, A056205.
%K A006383 nonn,nice,easy
%O A006383 0,3
%A A006383 _N. J. A. Sloane_
%E A006383 Definition corrected by _Brendan McKay_, Jan 07 2007
%E A006383 Terms a(7) onward from _Max Alekseyev_, Feb 05 2010