A034040 Imprimitively but not primitively represented by x^2+xy+2y^2.

9, 16, 18, 25, 36, 49, 50, 72, 81, 98, 99, 100, 121, 126, 144, 162, 169, 196, 198, 200, 207, 224, 225, 252, 275, 288, 289, 324, 333, 338, 350, 361, 387, 392, 396, 400, 414, 441, 450, 477, 504, 512, 522, 539, 550, 575, 576, 578, 625, 639, 648