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 A025046 #8 Oct 19 2017 03:13:45 %S A025046 3,5,19,17,67,71,131,73,277,311,827,241,1607,2543,3691,1559,6803,5711, %T A025046 14969,1009,43103,10559,52057,2689,90313,162263,127403,18191,209327, %U A025046 31391,607153,8089,1305511,298483,1694353,33049,3205777,1523707 %N A025046 a(n) = the least odd prime p such that there are exactly n consecutive quadratic remainders modulo p. %C A025046 The values -1,0,+1 are considered consecutive. %e A025046 a(5)=17 because -2,-1,0,+1,+2 are quadratic remainders, squares of 7,4,0,1,11. %Y A025046 Cf. A097159. %K A025046 nonn %O A025046 2,1 %A A025046 _David W. Wilson_ %E A025046 Edited by _Don Reble_, May 31 2007