Search: id:A006865
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%I A006865 M4946
%S A006865 1,14,154,1696,18684,205832,2267544,24980352,275195536,
%T A006865 3031685984,33398506528,367933962880,4053336963648,44653503613184,
%U A006865 491924407670784
%N A006865 Number of Hamiltonian cycles in P_5 X P_{2n}: a(n) = 11a(n-1)+2a(n-3).
%D A006865 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A006865 F. Faase, On the number of specific spanning subgraphs of the graphs 
               G X P_n, Ars Combin. 49 (1998), 129-154.
%D A006865 Kwong, Y. H. H.; Enumeration of Hamiltonian cycles in $P\sb 4\times P\sb 
               n$ and $P\sb 5\times P\sb n$. Ars Combin. 33 (1992), 87-96.
%D A006865 Kwong, Y. H. H.; A Matrix Method for Counting Hamiltonian Cycles on Grid 
               Graphs, European J. of Combinatorics 15 (1994), 277-283.
%H A006865 F. Faase, <a href="http://www.iwriteiam.nl/Cpaper.zip">On the number 
               of specific spanning subgraphs of the graphs G X P_n</a>, Preliminary 
               version of paper that appeared in Ars Combin. 49 (1998), 129-154.
%H A006865 F. Faase, <a href="http://www.iwriteiam.nl/counting.html">Counting Hamilton 
               cycles in product graphs</a>
%H A006865 F. Faase, <a href="http://www.iwriteiam.nl/Cresults.html">Results from 
               the counting program</a>
%H A006865 F. Faase, <a href="http://home.wxs.nl/~faase009/counting.html">Counting 
               Hamilton cycles in product graphs</a>
%Y A006865 Sequence in context: A125426 A004986 A154248 this_sequence A154347 A001707 
               A078999
%Y A006865 Adjacent sequences: A006862 A006863 A006864 this_sequence A006866 A006867 
               A006868
%K A006865 nonn
%O A006865 1,2
%A A006865 N. J. A. Sloane (njas(AT)research.att.com), kwong(AT)cs.fredonia.edu 
               (Harris Kwong), Frans Faase (Frans_LiXia(AT)wxs.nl)

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