Search: id:A077022
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%I A077022
%S A077022 1,6,17,11156,16548
%N A077022 Values of n such that sum of first n primes squared is divisible by n-th 
               prime.
%C A077022 Remainder, a(n), when sum of first n primes squared is divided by n-th 
               prime in A072004. In A072004, in three cases, a(n)=0 that is the 
               sum of squares of first n primes is divisible by n-th prime. Here 
               we added two more cases when a(n)=0.
%e A077022 6 is OK because (p(1)^2+...+p(6)^2)/p(6)=29; 17 is OK because (p(1)^2+...+p(17)^2)/
               p(17)=284; 11156 is OK because (p(1)^2+...+p(11156)^2)/p(11156)=410066261; 
               16548 is OK because (p(1)^2+...+p(16548 )^2)/p(16548)=941945317.
%Y A077022 Cf. A072004, A077023.
%Y A077022 Sequence in context: A130278 A024080 A099436 this_sequence A074923 A093061 
               A078741
%Y A077022 Adjacent sequences: A077019 A077020 A077021 this_sequence A077023 A077024 
               A077025
%K A077022 easy,nonn
%O A077022 1,2
%A A077022 Randy L. Ekl and Zak Seidov (Randy.Ekl(AT)Motorola.com; zakseidov(AT)yahoo.com), 
               Oct 17 2002

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