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A034039 Numbers that are primitively but not imprimitively represented by (x^2+xy+2y^2, x>=0, y>=0). 0

%I #7 Apr 30 2015 14:25:31

%S 1,2,11,14,22,23,28,37,43,46,53,58,71,74,77,79,86,106,107,109,116,127,

%T 134,137,142,149,151,154,158,161,163,193,197,203,211,214,218,226,233,

%U 239,253,254,259,263,268,274,281,298,301,302,317,319,322

%N Numbers that are primitively but not imprimitively represented by (x^2+xy+2y^2, x>=0, y>=0).

%Y Cf. A034035-A034042.

%K nonn

%O 1,2

%A _N. J. A. Sloane_.

%E Definition corrected by _N. J. A. Sloane_, Apr 30 2015

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Last modified April 20 00:03 EDT 2024. Contains 371798 sequences. (Running on oeis4.)