A123069 Odd positive integers that are not the sum of four positive squares.

1, 3, 5, 9, 11, 17, 29, 41

Offset

1,2

Comments

Odd terms of A000534. [From Max Alekseyev, Nov 16 2008]

References

J. H. Conway, The Sensual (Quadratic) Form, M.A.A., 1997, p. 140.

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.

Links

Table of n, a(n) for n=1..8.

Crossrefs

Cf. A000534.

Sequence in context: A094509 A120811 A340287 * A356537 A270836 A100456

Adjacent sequences: A123066 A123067 A123068 * A123070 A123071 A123072

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Sep 27 2006

Status

approved