Search: id:A000987
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%I A000987 M1793 N0707
%S A000987 0,1,1,2,7,32,184,1268,10186,93356,960646,10959452,137221954,1870087808,
%T A000987 27548231008,436081302248,7380628161076,132975267434552
%N A000987 Number of stochastic matrices of integers.
%D A000987 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A000987 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A000987 H. Gupta, Enumeration of symmetric matrices, Duke Math. J., 35 (1968), 
               653-659.
%Y A000987 Sequence in context: A097900 A000153 A006154 this_sequence A006957 A079265 
               A112006
%Y A000987 Adjacent sequences: A000984 A000985 A000986 this_sequence A000988 A000989 
               A000990
%K A000987 nonn
%O A000987 0,4
%A A000987 N. J. A. Sloane (njas(AT)research.att.com).

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