Sums of two distinct powers of 9.

Terms

a(0) =10a(1) =82a(2) =90a(3) =730a(4) =738a(5) =810a(6) =6562a(7) =6570a(8) =6642a(9) =7290a(10) =59050a(11) =59058a(12) =59130a(13) =59778a(14) =65610a(15) =531442a(16) =531450a(17) =531522a(18) =532170a(19) =538002a(20) =590490a(21) =4782970a(22) =4782978a(23) =4783050a(24) =4783698a(25) =4789530a(26) =4842018a(27) =5314410a(28) =43046722a(29) =43046730