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Search: id:A089477
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| A089477 |
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Smallest positive integer not the permanent of a real {0,1}-matrix of order n. |
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+0
4
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OFFSET
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1,1
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COMMENT
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a(6) from Gordon Royle (gordon(AT)maths.uwa.edu.au).
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EXAMPLE
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a(2)=3 because {0,1,2} are expressible as permanents of (0, 1)-matrices.
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CROSSREFS
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Cf. A089479 occurrence counts for permanents of (0, 1)-matrices, A087983 number of different values taken by permanent of (0, 1)-matrix, A013588 smallest number not expressible as determinant of (0, 1)-matrix.
Sequence in context: A048736 A087898 A072537 this_sequence A099962 A072536 A087592
Adjacent sequences: A089474 A089475 A089476 this_sequence A089478 A089479 A089480
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KEYWORD
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hard,more,nonn
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AUTHOR
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Hugo Pfoertner (hugo(AT)pfoertner.org), Nov 05 2003
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EXTENSIONS
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a(7) from Giovanni Resta (g.resta(AT)iit.cnr.it), Mar 29 2006
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