cp's OEIS Frontend

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.

A336793 Incrementally largest values of minimal positive y satisfying the equation x^2 - D*y^2 = -2, where D is an odd prime number.

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%I A336793 #18 Feb 13 2021 23:08:07
%S A336793 1,3,9,27,747,36321,2900979,5843427,563210019,11516632737,48957047673,
%T A336793 953426773899,23440805582361,27491112569139,734940417828177,
%U A336793 1270701455204457,106719437154440984241,292398373544007804918339,62392836359922644036329593,607918712560763608313068257
%N A336793 Incrementally largest values of minimal positive y satisfying the equation x^2 - D*y^2 = -2, where D is an odd prime number.
%C A336793 For the corresponding numbers D see A336792.
%H A336793 Christine Patterson, <a href="/A336793/a336793.txt">Sage Program</a>
%e A336793 For D=3, the least positive y for which x^2-D*y^2=-2 has a solution is 1. The next prime, D, for which x^2-D*y^2=-2 has a solution is 11, but the smallest positive y in this case is also 1, which is equal to the previous record y. So 11 is not a term.
%e A336793 The next prime, D, after 11 for which x^2-D*y^2=-2 has a solution is 19 and the least positive y for which it has a solution is y=3, which is larger than 1, so it is a new record y value. So 19 is a term of A336792 and 3 is a term of this sequence.
%Y A336793 Cf. A033315, A336792.
%K A336793 nonn
%O A336793 1,2
%A A336793 _Christine Patterson_, Oct 14 2020