Smallest positive integer solution x = a(n) of (3^4)*x - 2^n*y = 1 for n >= 0.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =17a(6) =49a(7) =49a(8) =177a(9) =177a(10) =177a(11) =177a(12) =2225a(13) =2225a(14) =2225a(15) =18609a(16) =18609a(17) =84145a(18) =84145a(19) =84145a(20) =608433a(21) =1657009a(22) =1657009a(23) =1657009a(24) =1657009a(25) =1657009a(26) =1657009a(27) =1657009a(28) =135874737a(29) =404310193