A239524 - OEIS

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A239524

Prime powers p (A025475) such that either d1 divides d2, or d2 divides d1, where d1 and d2 are the distances from p to the two nearest prime powers.

%I #11 Mar 29 2014 10:41:09

%S 8,9,343,361

%N Prime powers p (A025475) such that either d1 divides d2, or d2 divides d1, where d1 and d2 are the distances from p to the two nearest prime powers.

%C Note the two nearest prime powers can be both above or both below p.

%C a(5) > 1.6*10^19. - _Giovanni Resta_, Mar 21 2014

%Y Cf. A025475.

%K nonn,hard,more

%O 1,1

%A _Alex Ratushnyak_, Mar 20 2014