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Begins with (2, 3); avoids 3-term arithmetic progressions.
1

%I #9 Sep 19 2012 16:58:08

%S 2,3,5,6,11,12,14,15,29,30,32,33,38,39,41,42,83,84,86,87,92,93,95,96,

%T 110,111,113,114,119,120,122,123,245,246,248,249,254,255,257,258,272,

%U 273,275,276,281,282,284,285,326,327,329,330,335,336,338,339,353,354,356,357,362

%N Begins with (2, 3); avoids 3-term arithmetic progressions.

%D Iacobescu, F. 'Smarandache Partition Type and Other Sequences.' Bull. Pure Appl. Sci. 16E, 237-240, 1997.

%D H. Ibstedt, A Few Smarandache Sequences, Smarandache Notions Journal, Vol. 8, No. 1-2-3, 1997, 170-183.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/NonarithmeticProgressionSequence.html">Nonarithmetic Progression Sequence</a>

%Y a(n) = A003278(n)+1

%K nonn

%O 1,1

%A _N. J. A. Sloane_.