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A088672
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Number of n X n (0,1)-matrices with zero permanent.
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6
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OFFSET
| 1,2
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REFERENCES
| C. J. Everett and P. R. Stein, The asymptotic number of (0,1)-matrices with zero permanent, Disc. Math. 6 (1973), 29-34.
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LINKS
| Index entries for sequences related to binary matrices
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FORMULA
| a(n) is asymptotic to n(2^(n^2-n+1)). - Everett and Stein.
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CROSSREFS
| Cf. A089479, A089482.
Sequence in context: A144684 A191960 A168600 * A157571 A202689 A028456
Adjacent sequences: A088669 A088670 A088671 * A088673 A088674 A088675
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KEYWORD
| nonn,more
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AUTHOR
| Michael Somos, Oct 03 2003
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EXTENSIONS
| a(5) from Jaap Spies, Nov 02 2003. a(6) from Gordon Royle, Nov 03, 2003.
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