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A053635 Sum_{d|n} phi(d)*2^(n/d). +0
10
0, 2, 6, 12, 24, 40, 84, 140, 288, 540, 1080, 2068, 4224, 8216, 16548, 32880, 65856, 131104, 262836, 524324, 1049760, 2097480, 4196412, 8388652, 16782048, 33554600, 67117128, 134218836, 268452240, 536870968, 1073777040, 2147483708 (list; graph; listen)
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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