Monotonic ordering of nonnegative differences 5^i-2^j, for 40>=i>=0, j>=0.

Terms

a(0) =0a(1) =1a(2) =3a(3) =4a(4) =9a(5) =17a(6) =21a(7) =23a(8) =24a(9) =61a(10) =93a(11) =109a(12) =113a(13) =117a(14) =121a(15) =123a(16) =124a(17) =369a(18) =497a(19) =561a(20) =593a(21) =609a(22) =617a(23) =621a(24) =623a(25) =624a(26) =1077a(27) =2101a(28) =2613a(29) =2869