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Numbers n such that A003313(n) = A003313(2n).
10

%I #17 Mar 12 2018 19:16:33

%S 191,701,743,1111,1389,1479,2103,2215,2375,2681,2951,4281,4423,4491,

%T 4743,5337,5517,5895,6319,6367,6491,6703,6751,7247,7319,7463,7481,

%U 7571,7751,7909,7993,8043,8083,8269,8425,8537,8839,8853,8971,9479,10481

%N Numbers n such that A003313(n) = A003313(2n).

%H Hugo Pfoertner, <a href="/A086878/b086878.txt">Table of n, a(n) for n = 1..10000</a>

%H E. G. Thurber, <a href="http://dx.doi.org/10.1016/0012-365X(76)90105-9">Addition chains and solutions of l(2n)=l(n) and l(2^n-1)=n+l(n)-1</a>, Discrete Math., Vol. 16 (1976), 279-289.

%Y Cf. A003313, A230528.

%K nonn

%O 1,1

%A _Pontus von Brömssen_, Sep 16 2003