Sequence is generated as in A048985, but primes are instead written in decreasing order before being concatenated.
1, 2, 3, 10, 5, 14, 7, 42, 15, 22, 11, 58, 13, 30, 23, 170, 17, 62, 19, 90, 31, 46, 23, 234
1 seqfan posts
Wed Jun 2 11:05:11 CEST 2010 [seqfan] Working in base 2, 3, k, replace n by the concatenation of its prime divisors in decreasing/increasing order (write answer in base 10) with or without multiplicity