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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)
+0
1
1, 1, 3, 7, 41, 299, 6128 (list; graph; listen)
OFFSET

0,3

REFERENCES

M. A. Harrison, On the number of classes of binary matrices, IEEE Trans. Computers, 22 (1973), 1048-1051.

LINKS

Index entries for sequences related to binary matrices

EXAMPLE

a(2) = 3:

00 10 11

00 00 00

CROSSREFS

Cf. A002724, A005232, A006381, A006382, A056204, A056205.

Sequence in context: A018968 A018969 A018971 this_sequence A080581 A086397 A101412

Adjacent sequences: A006380 A006381 A006382 this_sequence A006384 A006385 A006386

KEYWORD

nonn,nice,easy,more

AUTHOR

njas

EXTENSIONS

Definition corrected by Brendan McKay, Jan 07 2007.

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Last modified December 3 16:57 EST 2008. Contains 151279 sequences.


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