A060428 Numbers of form x^2 + xy + y^2 (with repetitions if more than one representation is possible).

1, 3, 4, 7, 9, 12, 13, 16, 19, 21, 25, 27, 28, 31, 36, 37, 39, 43, 48, 49, 49, 52, 57, 61, 63, 64, 67, 73, 75, 76, 79, 81, 84, 91, 91, 93, 97, 100, 103, 108, 109, 111, 112, 117, 121, 124, 127, 129, 133, 133, 139, 144, 147, 147, 148, 151, 156, 157, 163, 169, 169, 171

Offset

1,2

Links

Table of n, a(n) for n=1..62.

Crossrefs

See A003136, which is the main entry for these numbers.

Sequence in context: A035270 A120451 A327621 * A352274 A035238 A003136

Adjacent sequences: A060425 A060426 A060427 * A060429 A060430 A060431

Keyword

nonn

Author

Anton Sherwood (bronto(AT)pobox.com), Apr 05 2001

Status

approved