This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A166264 #12 Feb 10 2020 18:25:15 %S A166264 174195,6,16,25,31,34,41,37,68,45,47,85,68,95,93,83,73,101,103,85,115, %T A166264 109,106,154,107,132,159,114,163,179,128,132,216,164,120,209,150,119, %U A166264 237,216,175,228,150,221,222,192,214,262,241,185,289,196,181,379,189 %N A166264 If the n-th prime is denoted by p(n) then a(j) = frequency with which each distinct value of (Sum of the quadratic non-residues of p(n) - Sum of the quadratic residues of p(n)) / p(n) occurs. %C A166264 The table below shows a(j) for each distinct value of (Sum of the quadratic non-residues of p(n) - Sum of the quadratic residues of p(n)) / p(n) for 1 <= n <= 348513, with p(348513) = 4999999 (< 5*10^6). %C A166264 a(1) appears to increase indefinitely, so the static sequence starts at a(2). %C A166264 j (SQN-SQR)/p(n) a(j) %C A166264 -- -------------- ------ %C A166264 1 0 174195 %C A166264 2 1 6 %C A166264 3 3 16 %C A166264 4 5 25 %C A166264 5 7 31 %C A166264 6 9 34 %C A166264 7 11 41 %C A166264 8 13 37 %C A166264 9 15 68 %C A166264 10 17 45 %C A166264 11 19 47 %C A166264 12 21 85 %C A166264 13 23 68 %C A166264 14 25 95 %C A166264 15 27 93 %C A166264 16 29 83 %C A166264 17 31 73 %C A166264 18 33 101 %C A166264 19 35 103 %C A166264 20 37 85 %C A166264 21 39 115 %C A166264 22 41 109 %C A166264 23 43 106 %C A166264 24 45 154 %C A166264 25 47 107 %C A166264 26 49 132 %C A166264 27 51 159 %C A166264 28 53 114 %C A166264 29 55 163 %C A166264 30 57 179 %C A166264 31 59 128 %C A166264 32 61 132 %C A166264 33 63 216 %C A166264 34 65 164 %C A166264 35 67 120 %C A166264 36 69 209 %C A166264 37 71 150 %C A166264 38 73 119 %C A166264 39 75 237 %C A166264 40 77 216 %C A166264 41 79 175 %C A166264 42 81 228 %C A166264 43 83 150 %C A166264 44 85 221 %C A166264 45 87 222 %C A166264 46 89 192 %C A166264 47 91 214 %C A166264 48 93 262 %C A166264 49 95 241 %C A166264 50 97 185 %C A166264 51 99 289 %C A166264 52 101 196 %C A166264 53 103 181 %C A166264 54 105 379 %C A166264 55 107 189 %C A166264 56 109 209 %C A166264 57 111 314 %C A166264 58 113 239 %H A166264 Christopher Hunt Gribble, <a href="/A166264/b166264.txt">Table of n, a(n) for n = 1..1973</a>. %Y A166264 Cf. A165951, A165974, A004273. %K A166264 nonn %O A166264 1,1 %A A166264 _Christopher Hunt Gribble_, Oct 10 2009