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 A282722 Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p that are > p/2. 2
 0, 9, 44, 293, 461, 758, 1022, 1799, 2530, 3171, 4778, 5068, 7662, 8470, 9993, 14097, 16674, 19467, 20755, 25701, 29042, 34471, 37506, 40661, 45066, 48541, 54324, 54224, 58135, 60351, 68593, 75432, 74014, 83881, 85900, 98518, 112000, 117443, 122241, 132125, 143322, 151299, 163180, 161975, 181191 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Jean-François Alcover, Table of n, a(n) for n = 1..1000 Christian Aebi, Grant Cairns, Sums of Quadratic residues and nonresidues, arXiv:1512.00896 [math.NT], 2015. MAPLE with(numtheory): Ql:=[]; Qu:=[]; Q:=[]; Nl:=[]; Nu:=[]; N:=[]; Th:=[]; for i1 from 1 to 300 do p:=ithprime(i1); if (p mod 8) = 3 then ql:=0; qu:=0; q:=0; nl:=0; nu:=0; n:=0; for j from 1 to p-1 do if legendre(j, p)=1 then q:=q+j; if j

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Last modified April 12 20:17 EDT 2024. Contains 371636 sequences. (Running on oeis4.)