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 A111321 Numbers n such that 7 divides prime(1)+...+prime(n). 1

%I

%S 5,8,13,22,33,40,47,50,56,63,72,84,86,104,106,110,115,126,128,139,148,

%T 150,154,157,160,180,184,186,188,200,209,220,228,230,232,236,238,240,

%U 244,253,270,274,300,302,305,322,324,331,339,354,367,371,384,415,417,420,428,433

%N Numbers n such that 7 divides prime(1)+...+prime(n).

%H Harvey P. Dale, <a href="/A111321/b111321.txt">Table of n, a(n) for n = 1..1000</a>

%t Position[Accumulate[Prime[Range[500]]],_?(Divisible[#,7]&)]//Flatten (* _Harvey P. Dale_, Oct 06 2017 *)

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Nov 05 2005

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Last modified November 27 04:00 EST 2020. Contains 338677 sequences. (Running on oeis4.)