Minimal absolute difference of 3^n and 2^k.

Terms

a(0) =0a(1) =1a(2) =1a(3) =5a(4) =17a(5) =13a(6) =217a(7) =139a(8) =1631a(9) =3299a(10) =6487a(11) =46075a(12) =7153a(13) =502829a(14) =588665a(15) =2428309a(16) =9492289a(17) =5077565a(18) =118985033a(19) =88519643a(20) =808182895a(21) =1870418611a(22) =2978678759a(23) =25423702091a(24) =7551629537a(25) =252223018333a(26) =342842572777