Monotonic ordering of nonnegative differences 3^i-5^j, for 40>= i>=0, j>=0.

Terms

a(0) =0a(1) =2a(2) =4a(3) =8a(4) =22a(5) =26a(6) =56a(7) =76a(8) =80a(9) =104a(10) =118a(11) =218a(12) =238a(13) =242a(14) =604a(15) =704a(16) =724a(17) =728a(18) =1562a(19) =2062a(20) =2162a(21) =2182a(22) =2186a(23) =3436a(24) =4058a(25) =5936a(26) =6436a(27) =6536a(28) =6556a(29) =6560