A035121 - OEIS

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A035121

Numbers of the form x^2+82*y^2.

0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 82, 83, 86, 91, 98, 100, 107, 118, 121, 131, 144, 146, 163, 169, 182, 196, 203, 225, 226, 251, 256, 278, 289, 307, 324, 328, 329, 332, 337, 338, 344, 353, 361, 364, 371, 377, 392

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

Determinant = -328.

REFERENCES

J. W. S. Cassels, Rational Quadratic Forms, Cambridge, 1978; see p. 3.

LINKS

Table of n, a(n) for n=1..47.

N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)

CROSSREFS

Sequence in context: A061205 A290934 A048387 * A080151 A292679 A357632

Adjacent sequences: A035118 A035119 A035120 * A035122 A035123 A035124

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved