3^n with digits rearranged into nonincreasing order.

Terms

a(0) =1a(1) =3a(2) =9a(3) =72a(4) =81a(5) =432a(6) =972a(7) =8721a(8) =6651a(9) =98631a(10) =99540a(11) =777411a(12) =544311a(13) =9543321a(14) =9987642a(15) =98744310a(16) =76443210a(17) =964321110a(18) =988744320a(19) =7666422111a(20) =8876444310a(21) =65433321000a(22) =99865331100a(23) =98877443211a(24) =988654432221a(25) =988876444320