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A166055 Integers of the form 4n+3 for which Sum_{i=1..u} J(i,4n+3) obtains value zero exactly 5 times, when u ranges from 1 to (4n+3). Here J(i,k) is the Jacobi symbol. 2

%I #2 Mar 31 2012 13:21:20

%S 19,35,59,63,103,131,251,279,299,371,395,419,495,711,755,899,927,943,

%T 971,1091,1139,1143,1207,1359,1595,1739,1743,1791,1811,1931,1979,2007,

%U 2219,2411,2423,2435,2439,2651,2655,2703,2771,2847,2871,2915,2939

%N Integers of the form 4n+3 for which Sum_{i=1..u} J(i,4n+3) obtains value zero exactly 5 times, when u ranges from 1 to (4n+3). Here J(i,k) is the Jacobi symbol.

%C Third row of A166092.

%Y a(n) = A004767(A166054(n)).

%K nonn

%O 1,1

%A _Antti Karttunen_, Oct 08 2009

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Last modified August 31 19:25 EDT 2024. Contains 375573 sequences. (Running on oeis4.)