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A084549 Numbers n that have primitive roots less than n that are nonnegative perfect seventh powers. 2

%I

%S 131,139,149,163,169,173,179,181,227,243,269,293,317,347,349,361,373,

%T 389,419,443,461,467,509,523,541,557,563,587,613,619,625,653,661,677,

%U 709,729,773,787,797,821,829,853,859,877

%N Numbers n that have primitive roots less than n that are nonnegative perfect seventh powers.

%Y Cf. A084547, A084548, A084550.

%K nonn

%O 1,1

%A Hauke Worpel (hw1(AT)email.com), May 30 2003

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Last modified March 25 01:17 EDT 2019. Contains 321450 sequences. (Running on oeis4.)