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%I #7 Mar 16 2019 21:40:21
%S 1,3,5,9,11,17,29,41
%N Odd positive integers that are not the sum of four positive squares.
%C Odd terms of A000534. [From _Max Alekseyev_, Nov 16 2008]
%D J. H. Conway, The Sensual (Quadratic) Form, M.A.A., 1997, p. 140.
%D L. E. Dickson, History of the Theory of Numbers. Carnegie Institute Public. 256, Washington, DC, Vol. 1, 1919; Vol. 2, 1920; Vol. 3, 1923, see vol. 2, p. 302.
%Y Cf. A000534.
%K nonn,fini,full
%O 1,2
%A _N. J. A. Sloane_, Sep 27 2006
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