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A152940
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Odd squarefree numbers n such that the cyclotomic polynomial Phi(n,x) has height 2.
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7
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105, 165, 195, 255, 273, 285, 345, 357, 429, 455, 555, 561, 609, 615, 627, 645, 705, 715, 759, 777, 795, 805, 897, 957, 969, 987, 1001, 1005, 1015, 1023, 1045, 1065, 1085, 1095, 1105, 1131, 1185, 1221, 1239, 1245, 1265, 1295, 1407, 1419, 1435, 1455, 1491
(list; graph; refs; listen; history; internal format)
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