%I A014524
%S A014524 0,1,8,47,264,1480,8305,46616,261663,1468752,8244304,46276385,
%T A014524 259755560,1458042831,8184190168,45938958232,257861540369,
%U A014524 1447411446840,8124514782015,45603992276896,255981331487648
%N A014524 Number of Hamiltonian paths in a 4 X 2n grid.
%D A014524 K. L. Collins and L. B. Krompart, The number of Hamiltonian paths in 
               a rectangular grid, Discrete Math. 169 (1997), 29-38.
%F A014524 The reference gives a generating function.
%Y A014524 Sequence in context: A026900 A016198 A051140 this_sequence A054488 A034349 
               A024108
%Y A014524 Adjacent sequences: A014521 A014522 A014523 this_sequence A014525 A014526 
               A014527
%K A014524 nonn
%O A014524 0,3
%A A014524 N. J. A. Sloane (njas(AT)research.att.com).