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%I #5 Mar 31 2012 20:38:26
%S 1,2,3,4,5,5,7,8,7,6,9,11,10,11,13,12,9,7,11,14,13,15,18,17,13,14,19,
%T 21,18,17,19,16,11,8,13,17,16,19,23,22,17,19,26,29,25,24,27,23,16,17,
%U 25,30,27,29,34,31,23,22,29,31,26,23,25,20,13,9,15,20,19,23
%N Sum of numerator and denominator of fractions in Farey tree A007305/A007306.
%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 A007305+A007306.
%Y Subset of A007306. Cf. A049465-A049468.
%K nonn,easy,nice,tabf
%O 0,2
%A _N. J. A. Sloane_, _Gregory V. Richardson_
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