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A086109 Numbers n such that p=prime(n) is substring of 2^p-1. 1


%S 4,12,19,21,24,41,43,74,92,98,110,112,114,119,121,122,126,128,129,136,

%T 137,147,152,155,157,245,248,264,267,272,282,304,318,322,343,348,349,

%U 372,378,394,397,412,434,474,502,505,513,520,528,534,535,536,551,553

%N Numbers n such that p=prime(n) is substring of 2^p-1.

%C p=prime such that p is substring of 2^p-1 in A086110.

%e a(2)=12 because prime(12)=37 is substring of 2^37-1=137438953471.

%Y Cf. A086110.

%K easy,nonn,base

%O 1,1

%A _Zak Seidov_, Jul 10 2003

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Last modified October 18 06:27 EDT 2021. Contains 348065 sequences. (Running on oeis4.)