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A067843
Least solution k of phi(k-n)+phi(k+n)=phi(2k).
+0
1
5, 10, 7, 10, 11, 12, 35, 14, 13, 22, 55, 22, 19, 70, 19, 22, 85, 26, 77, 26, 27, 110, 55, 34, 55, 38, 31, 34, 119, 38, 65, 44, 41, 52, 65, 46, 185, 154, 43, 46
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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