%I A158074
%S A158074 0,0,0,0,32,352,3072,30848,295456,2896832,28120096,273895232,2664515712,
%T A158074 25931157504,252338724352,2455552258304,23895692937216,232533011307776,
%U A158074 2262837745837568,22020130538878208,214282979451801088
%N A158074 Number of (directed) Hamiltonian cycles on a 3x(2n) knight's tour graph.
%H A158074 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               KnightsTour.html">Knight's Tour</a>
%Y A158074 Equals 2*A070030(n). Cf. A070030 for details and references [From Eric 
               W. Weisstein (eric(AT)weisstein.com), Mar 18 2009]
%Y A158074 Sequence in context: A145402 A009797 A006763 this_sequence A105250 A055752 
               A125420
%Y A158074 Adjacent sequences: A158071 A158072 A158073 this_sequence A158075 A158076 
               A158077
%K A158074 nonn
%O A158074 1,5
%A A158074 E. W. Weisstein (eric(AT)weisstein.com), Mar 13, 2009
%E A158074 Extended by Eric W. Weisstein (eric(AT)weisstein.com), Mar 18 2009