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A020682 Numbers of form 4 x^2 + 5 y^2. 0

%I

%S 0,4,5,9,16,20,21,24,36,41,45,49,56,61,64,69,80,81,84,96,100,105,109,

%T 116,120,125,129,141,144,145,149,161,164,180,184,189,196,201,216,224,

%U 225,241,244,245,249,256,261,269,276,280,281,301,309,320,321,324,329,336,344,345

%N Numbers of form 4 x^2 + 5 y^2.

%H N. J. A. Sloane et al., <a href="https://oeis.org/wiki/Binary_Quadratic_Forms_and_OEIS">Binary Quadratic Forms and OEIS</a> (Index to related sequences, programs, references)

%K easy,nonn

%O 1,2

%A _David W. Wilson_

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Last modified September 22 10:38 EDT 2021. Contains 347606 sequences. (Running on oeis4.)