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 A140629 #20 Aug 05 2014 14:16:32 %S A140629 241,409,769,1321,1489,2281,3001,4129,4441,5449,5689,6121,6481,6961, %T A140629 7129,7321,7369,8209,9001,11161,11329,11689,12241,12409,13249,13681, %U A140629 13921,14929,15361,16369,16729,17041,17401,17569,17881,18049,18289 %N A140629 Primes of the form 76x^2+20xy+145y^2. %C A140629 Discriminant=-43680. Also primes of the form 96x^2+72xy+241y^2. %C A140629 In base 12, the sequence is 181, 2X1, 541, 921, X41, 13X1, 18X1, 2481, 26X1, 31X1, 3361, 3661, 3901, 4041, 4161, 42X1, 4321, 4901, 5261, 6561, 6681, 6921, 7101, 7221, 7801, 7E01, 8081, 8781, 8X81, 9581, 9821, 9X41, X0X1, X201, X421, X541, X701, where X is 10 and E is 11. Moreover, the discriminant is -21340. - _Walter Kehowski_, Jun 01 2008 %H A140629 Vincenzo Librandi and Ray Chandler, <a href="/A140629/b140629.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A140629 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 A140629 Union[QuadPrimes2[76, 20, 145, 10000], QuadPrimes2[76, -20, 145, 10000]] (* see A106856 *) %Y A140629 Cf. A140633. %K A140629 nonn,easy %O A140629 1,1 %A A140629 _T. D. Noe_, May 19 2008