A020689 Numbers of form 6 x^2 + 7 y^2.

0, 6, 7, 13, 24, 28, 31, 34, 52, 54, 61, 63, 69, 82, 87, 96, 103, 112, 117, 118, 124, 136, 150, 157, 159, 166, 175, 178, 181, 199, 208, 213, 216, 223, 229, 244, 252, 258, 262, 271, 276, 279, 294, 301, 306, 322, 325, 328, 343, 348, 349, 357, 367, 384, 391, 397, 402, 406

Offset

1,2

Links

Table of n, a(n) for n=1..58.

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

Crossrefs

Sequence in context: A041749 A042723 A160825 * A128844 A128850 A042025

Adjacent sequences: A020686 A020687 A020688 * A020690 A020691 A020692

Keyword

easy,nonn

Author

David W. Wilson

Status

approved