Numbers of the form 6^j + 9^k, for j and k >= 0.

Terms

a(0) =2a(1) =7a(2) =10a(3) =15a(4) =37a(5) =45a(6) =82a(7) =87a(8) =117a(9) =217a(10) =225a(11) =297a(12) =730a(13) =735a(14) =765a(15) =945a(16) =1297a(17) =1305a(18) =1377a(19) =2025a(20) =6562a(21) =6567a(22) =6597a(23) =6777a(24) =7777a(25) =7785a(26) =7857a(27) =8505a(28) =14337a(29) =46657