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a(n) = s(n+3)/4, where s is A024949.
0

%I #3 Mar 30 2012 18:56:00

%S 1,1,5,9,13,33,73,145,313,657,1693,3705,8101,18753,45777,105857,

%T 238481,556257,1358901,3192585,7386269,17475041,42632153,101388497,

%U 238670857,566984561,1396385741,3345556153,7948311797,19091588993,46987486625

%N a(n) = s(n+3)/4, where s is A024949.

%K nonn

%O 1,3

%A _Clark Kimberling_