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%I #7 Oct 24 2019 19:14:11
%S 1,3,10,19,42,76,156,283,570,1046,2096,3890,7784,14582,29168,55051,
%T 110106,209062,418128,797806,1595616,3056868,6113740,11752674,
%U 23505352,45316896,90633796,175175816,350351636,678639146,1357278296
%N a(n) = A027170(n, floor(n/2)).
%K nonn
%O 0,2
%A _Clark Kimberling_