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Search: id:A002728
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| A002728 |
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Number of n X (n+2) binary matrices.
(Formerly M3593 N1457)
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+0
3
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| 4, 22, 190, 3250, 136758, 17256831, 7216495370, 10271202313659, 49856692830176512, 826297617412284162618, 46948445432190686211183650, 9200267975562856184153936960940, 6261904454889790650636380541051266410
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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Misek, Bohuslav; On the number of classes of strongly equivalent incidence matrices. (Czech) Casopis Pest. Mat. 89 1964 211-218.
A. Kerber, Experimentelle Mathematik, S\'{e}minaire Lotharingien de Combinatoire. Institut de Recherche Math. Avanc\'{e}e, Universit\'{e} Louis Pasteur, Strasbourg, Actes 19 (1988), 77-83.
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CROSSREFS
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Cf. A002623, A002727, A006148, A002724, A002725.
Adjacent sequences: A002725 A002726 A002727 this_sequence A002729 A002730 A002731
Sequence in context: A125863 A004115 A112370 this_sequence A062494 A103437 A063380
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KEYWORD
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nonn
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AUTHOR
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njas
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EXTENSIONS
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More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Feb 04 2000
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