3^n with digits rearranged into nondecreasing order.

Terms

a(0) =1a(1) =3a(2) =9a(3) =27a(4) =18a(5) =234a(6) =279a(7) =1278a(8) =1566a(9) =13689a(10) =4599a(11) =114777a(12) =113445a(13) =1233459a(14) =2467899a(15) =1344789a(16) =1234467a(17) =11123469a(18) =23447889a(19) =1112246667a(20) =134446788a(21) =12333456a(22) =113356899a(23) =11234477889a(24) =122234456889a(25) =23444678889