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 A140625 #20 Aug 05 2014 14:16:32 %S A140625 157,277,397,613,733,757,853,997,1213,1453,1597,2053,2437,2557,2677, %T A140625 2797,3037,3253,3733,3877,4357,4813,4957,5077,5413,5557,6277,6637, %U A140625 6733,6997,7237,7573,8053,8293,8893,9013,9277,9397,9733,9973,10093 %N A140625 Primes of the form 28x^2+20xy+85y^2. %C A140625 Discriminant=-9120. Also primes of the form 45x^2+30xy+157y^2. %C A140625 In base 12, the sequence is 111, 1E1, 291, 431, 511, 531, 5E1, 6E1, 851, X11, E11, 1231, 14E1, 1591, 1671, 1751, 1911, 1X71, 21E1, 22E1, 2631, 2951, 2X51, 2E31, 3171, 3271, 3771, 3X11, 3X91, 4071, 4231, 4471, 47E1, 4971, 5191, 5271, 5451, 5531, 5771, 5931, 5X11, where X is 10 and E is 11. Moreover, the discriminant is -5340. - _Walter Kehowski_, Jun 01 2008 %H A140625 Vincenzo Librandi and Ray Chandler, <a href="/A140625/b140625.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A140625 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) %t A140625 Union[QuadPrimes2[28, 20, 85, 10000], QuadPrimes2[28, -20, 85, 10000]] (* see A106856 *) %Y A140625 Cf. A140633. %K A140625 nonn,easy %O A140625 1,1 %A A140625 _T. D. Noe_, May 19 2008