%I #4 Oct 19 2017 03:14:19
%S 2,1,4,10,27,73,198,538,1462,3974,10802,29363,79816,216962,589764,
%T 1603144,4357797,11845720,32200005,87528688,237927642,646754385,
%U 1758060692,4778904432,12990409077,35311592938,95986861417
%N a(0)=2, a(1)=1, a(n+2)=floor[(e-1/e)*a(n+1)+a(n-2)].
%C a(n+1)/a(n) converges to e.
%C For n>0, floor[log a(n)] = n-1.
%C This resembles a Lucas sequence.
%Y Cf. A000149, A085422, A085839.
%K nonn
%O 0,1
%A _Gary W. Adamson_, Jun 29 2003
%E Edited by _Don Reble_, Nov 14 2005
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