%I M1121 #17 Sep 01 2019 10:13:25
%S 1,2,4,8,16,31,61,115,213,388,691,1218,2110,3617,6113,10238,16945,
%T 27802,45180,72838,116479,184936,291556,456694,710907,1100192,1693123,
%U 2591830,3947417,5982953
%N Erroneous version of A309982.
%C Included in accordance with OEIS policy of listing published but incorrect sequences, to serve as pointers to the correct versions.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%D G. Szekeres and A. J. Guttmann, Spiral self-avoiding walks on the triangular lattice, J. Phys. A 20 (1987), 481-493.
%K dead
%O 1,2