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 A140632 #20 Aug 05 2014 14:16:32 %S A140632 199,439,1039,1231,1951,2239,2551,2791,3559,3631,4759,5431,6991,7159, %T A140632 7591,8839,9439,10111,11119,11311,11959,13159,13711,13831,14479,14551, %U A140632 15391,15679,15991,16519,16831,17239,17359,17839,17911,18199,18919 %N A140632 Primes of the form 55x^2+10xy+199y^2. %C A140632 Discriminant=-43680. Also primes of the form 159x^2+120xy+160y^2. %C A140632 In base 12, the sequence is 147, 307, 727, 867, 1167, 1367, 1587, 1747, 2087, 2127, 2907, 3187, 4067, 4187, 4487, 5147, 5567, 5X27, 6527, 6667, 6E07, 7747, 7E27, 8007, 8467, 8507, 8XX7, 90X7, 9307, 9687, 98X7, 9E87, X067, X3X7, X447, X647, XE47, where X is 10 and E is 11. Moreover, the discriminant is -21340. - _Walter Kehowski_, Jun 01 2008 %H A140632 Vincenzo Librandi and Ray Chandler, <a href="/A140632/b140632.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi] %H A140632 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 A140632 Union[QuadPrimes2[55, 10, 199, 10000], QuadPrimes2[55, -10, 199, 10000]] (* see A106856 *) %Y A140632 Cf. A140633. %K A140632 nonn,easy %O A140632 1,1 %A A140632 _T. D. Noe_, May 19 2008