%I #3 Mar 31 2012 10:29:01
%S 0,0,1,0,1,3,2,1,5
%N Probability P(n) of the occurrence of a 3-dimensional self-trapping walk of length n: exponent of 3 in the denominator.
%D See under A077818
%F P(n) = A077818(n) / ( 5^(n-1) * 3^A077819(n) * 2^A077820(n) )
%e See under A077818
%Y Cf. A077818, A077820.
%K more,nonn
%O 11,6
%A _Hugo Pfoertner_, Nov 17 2002
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