%I M1502 N0590 #14 Nov 25 2015 01:51:43
%S 1,2,5,16,67,435
%N Number of circuits of nullity n.
%D R. M. Foster, Geometrical circuits of electrical networks, Transactions of the American Institute of Electrical Engineers, 51 (1932), 309-317.
%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%Y Cf. A002632.
%K nonn,more,nice
%O 1,2
%A _N. J. A. Sloane_