A084796 Replace n by concatenation of its prime factors in decreasing order.

1, 2, 3, 22, 5, 32, 7, 222, 33, 52, 11, 322, 13, 72, 53, 2222, 17, 332, 19, 522, 73, 112, 23, 3222, 55, 132, 333, 722, 29, 532, 31, 22222, 113, 172, 75, 3322, 37, 192, 133, 5222, 41, 732, 43, 1122, 533, 232, 47, 32222, 77, 552, 173, 1322, 53, 3332, 115, 7222, 193, 292