x-values in the solution to x^2 - 13y^2 = 27.

Terms

a(0) =12a(1) =40a(2) =220a(3) =768a(4) =14808a(5) =51700a(6) =285520a(7) =996852a(8) =19220772a(9) =67106560a(10) =370604740a(11) =1293913128a(12) =24948547248a(13) =87104263180a(14) =481044667000