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%I #4 Mar 31 2012 12:35:34
%S 1,2,4,8,16,30,58,113,219,426,826,1602,3114,6054,11774,22906,44580,
%T 86816,169146,329690,642902,1254228,2447972,4780028,9337760,18249160,
%U 35680380,69791189,136569595,267354230,523597338,1025847551,2010669785,3942472250
%N Number of binary strings of length n with equal numbers of 00101 and 01010 substrings
%H R. H. Hardin, <a href="/A164245/b164245.txt">Table of n, a(n) for n=0..500</a>
%K nonn
%O 0,2
%A _R. H. Hardin_ Aug 11 2009