A133136 Powers of 3 written backwards and sorted.

1, 3, 9, 18, 72, 342, 927, 1656, 7812, 38691, 94095, 144135, 741771, 3234951, 9692874, 12764034, 70984341, 361041921, 984024783, 1044876843, 7641622611, 30235306401, 72887134149, 90695018313, 184635924282, 344906882748