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A027916
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Least k such that 1+2+...+k >= E{1,2,...,n}, where E = 2nd elementary symmetric function.
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1
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2, 5, 8, 13, 19, 25, 33, 42, 51, 62, 74, 86, 100, 115, 130, 147, 165, 183, 203, 224, 245, 268, 292, 316, 342, 369, 396, 425, 455, 485, 517, 550, 583, 618, 654, 690, 728, 767, 806, 847, 889, 931, 975, 1020, 1065, 1112, 1160, 1208, 1258, 1309, 1360, 1413, 1467
(list; graph; refs; listen; history; internal format)
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