Monotonic ordering of nonnegative differences 3^i-10^j, for 40>= i>=0, j>=0.

Terms

a(0) =0a(1) =2a(2) =8a(3) =17a(4) =26a(5) =71a(6) =80a(7) =143a(8) =233a(9) =242a(10) =629a(11) =719a(12) =728a(13) =1187a(14) =2087a(15) =2177a(16) =2186a(17) =5561a(18) =6461a(19) =6551a(20) =6560a(21) =9683a(22) =18683a(23) =19583a(24) =19673a(25) =19682a(26) =49049a(27) =58049a(28) =58949a(29) =59039