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%I #6 Jan 22 2018 22:37:20
%S 1,3,4,5,7,6,9,11,10,7,11,14,13,15,18,17,13,8,13,17,16,19,23,22,17,19,
%T 26,29,25,24,27,23,16,9,15,20,19,23,28,27,21,24,33,37,32,31,35,30,21,
%U 23,34,41,37,40,47,43,32,31,41,44,37,33,36,29,19,10,17,23,22
%N Replace each fraction p/q in Farey tree A007305/A007306 with 2p + q.
%D J. C. Lagarias, Number Theory and Dynamical Systems, pp. 35-72 of S. A. Burr, ed., The Unreasonable Effectiveness of Number Theory, Proc. Sympos. Appl. Math., 46 (1992). Amer. Math. Soc.
%F Equals 2*A007305 + A007306.
%K nonn,easy,tabf
%O 0,2
%A _Gregory V. Richardson_