Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #8 Jul 09 2015 12:46:18
%S 4,12,64,160,676,1732,6440,16688,57620,150580,494776,1301208,4126100,
%T 10903692,33663256,89287024,269997636,718153380,2136075840,5693969456,
%U 16710504036,44618212196
%N Total length of self-avoiding walks with n bonds on the square lattice with additional bridges of length 2.
%H A. J. Guttmann and Y. S. Yang, <a href="http://dx.doi.org/10.1088/0305-4470/24/7/031">The shortest path of SAWs with bridges</a>, Journal of Physics A: Mathematical and General 24.7 (1991): 1603-1609.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Jul 08 2015