Monotonic ordering of nonnegative differences 5^i-6^j, for 40>= i>=0, j>=0.

Terms

a(0) =0a(1) =4a(2) =19a(3) =24a(4) =89a(5) =119a(6) =124a(7) =409a(8) =589a(9) =619a(10) =624a(11) =1829a(12) =2909a(13) =3089a(14) =3119a(15) =3124a(16) =7849a(17) =14329a(18) =15409a(19) =15589a(20) =15619a(21) =15624a(22) =31469a(23) =70349a(24) =76829a(25) =77909a(26) =78089a(27) =78119a(28) =78124a(29) =110689