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 A244032 #11 Jun 22 2014 12:56:00 %S A244032 1,4,8,9,12,16,24,45,48,72,80,120,240 %N A244032 Positive numbers n such that there exists a positive number m != n such that x^2+ny^2 and x^2+my^2 represent the same odd primes. %C A244032 There are no other terms for which both n and m are < 100000. %H A244032 William C. Jagy and Irving Kaplansky, <a href="/A244019/a244019.pdf">Positive definite binary quadratic forms that represent the same primes</a> [Cached copy] %H A244032 N. J. A. Sloane et al., <a href="https://oeis.org/wiki/Binary_Quadratic_Forms_and_OEIS">Binary Quadratic Forms and OEIS</a> (Index to related sequences, programs, references) %e A244032 For example, 9 and 12 are members because the odd primes (in fact all the primes) represented by x^2+9y^2 and x^2+12y^2 are the same - see A068228. %Y A244032 Cf. A068228. %K A244032 nonn %O A244032 1,2 %A A244032 _N. J. A. Sloane_, Jun 22 2014