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A120571
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2n^4+6n^2+4 = 2(n^2+1)(n^2+2).
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2
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12, 60, 220, 612, 1404, 2812, 5100, 8580, 13612, 20604, 30012, 42340, 58140, 78012, 102604, 132612, 168780, 211900, 262812, 322404, 391612, 471420, 562860, 667012, 785004, 918012, 1067260, 1234020, 1419612, 1625404, 1852812, 2103300, 2378380
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