Search: id:A002631
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%I A002631 M1502 N0590
%S A002631 1,2,5,16,67,435
%N A002631 Number of circuits of nullity n.
%D A002631 R. M. Foster, Geometrical circuits of electrical networks, Transactions 
               of the American Institute of Electrical Engineers, 51 (1932), 309-317.
%D A002631 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A002631 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%Y A002631 Cf. A002632.
%Y A002631 Sequence in context: A005163 A006116 A122082 this_sequence A107948 A058673 
               A059295
%Y A002631 Adjacent sequences: A002628 A002629 A002630 this_sequence A002632 A002633 
               A002634
%K A002631 nonn,more,nice
%O A002631 1,2
%A A002631 N. J. A. Sloane (njas(AT)research.att.com).

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