A157075 Positive integers n for which the Diophantine equation x^2 + y^2 = n^2/2 has relatively prime solutions.

10, 26, 34, 50, 58, 74, 82, 106, 122, 130, 146, 170, 178, 194, 202, 218, 226, 250, 274, 290, 298, 314, 338, 346, 362, 370, 386, 394, 410, 442, 458, 466, 482, 514, 530, 538, 554, 562, 578, 586, 610, 626, 634, 650, 674, 698, 706, 730, 746, 754, 778, 794, 802

Offset

1,1

Links

Table of n, a(n) for n=1..53.

Formula

a(n) = 2 * A008846(n). [From N. J. A. Sloane, Feb 24 2009]

Crossrefs

Sequence in context: A045143 A005278 A339977 * A369668 A262998 A245021

Adjacent sequences: A157072 A157073 A157074 * A157076 A157077 A157078

Keyword

nonn

Author

Knut Angstrom (angstrom.knut(AT)telia.com), Feb 22 2009

Extensions

Edited and extended by Max Alekseyev, Apr 22 2010

Status

approved