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A064896 Numbers of the form (2^{mr}-1)/(2^r-1) for positive integers m, r. +0
6
1, 3, 5, 7, 9, 15, 17, 21, 31, 33, 63, 65, 73, 85, 127, 129, 255, 257, 273, 341, 511, 513, 585, 1023, 1025, 1057, 1365, 2047, 2049, 4095, 4097, 4161, 4369, 4681, 5461, 8191, 8193, 16383, 16385, 16513, 21845, 32767, 32769, 33825, 37449, 65535, 65537 (list; graph; listen)
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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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