A034042 Numbers that are primitively or imprimitively represented by (x^2+xy+2y^2, x>=0, y>=0), but not both.

1, 2, 9, 11, 14, 16, 18, 22, 23, 25, 28, 36, 37, 43, 46, 49, 50, 53, 58, 71, 72, 74, 77, 79, 81, 86, 98, 99, 100, 106, 107, 109, 116, 121, 126, 127, 134, 137, 142, 144, 149, 151, 154, 158, 161, 162, 163, 169, 193, 196, 197, 198, 200, 203, 207, 211, 214

Offset

1,2

Links

Table of n, a(n) for n=1..57.

Crossrefs

Cf. A034035-A034042.

Sequence in context: A137000 A073634 A065554 * A138759 A345925 A098934

Adjacent sequences: A034039 A034040 A034041 * A034043 A034044 A034045

Keyword

nonn

Author

N. J. A. Sloane.

Extensions

Definition corrected by N. J. A. Sloane, Apr 30 2015

Status

approved