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A056067
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Numbers n such that n! is divisible by the square of (f+d)!^2 for d=0 and d=1 (and possibly larger d), where f=floor[n/2]
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1
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1, 10, 11, 28, 29, 54, 55, 82, 83, 88, 89, 130, 131, 152, 153, 180, 181, 218, 219, 250, 251, 278, 279, 304, 305, 310, 311, 338, 339, 372, 373, 378, 379, 406, 407, 416, 417, 418, 419, 438, 439, 454, 455, 460, 461, 474, 475, 530, 531, 550, 551, 596, 597, 614
(list; graph; refs; listen; history; internal format)
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