Composites with prime sum of prime factors of n and nonprime difference largest prime factor of n - smallest prime factor of n.
6, 12, 22, 34, 48, 54, 58, 63, 82, 88, 96, 99, 108, 117, 118, 136, 142, 147, 148, 153
1 seqfan posts
Mon Mar 29 19:38:20 CEST 2010 [seqfan] Re: Help me understand these sequences