%I
%S 0,0,0,1,2,0,2,4,5,2,5,7,8,8
%N Probability P(n) of the occurrence of a 2D selftrapping walk of length n: Exponent of 2 in the denominator.
%C This sequence is the exponent of 2 in the denominator for P(n).
%D For references see under A077483
%F P(n) = A077483(n) / ( 3^(n1) * 2^A077484(n) )
%Y Cf. A077483.
%K frac,more,nonn,walk
%O 7,5
%A _Hugo Pfoertner_, Nov 08 2002
