Primitive elements of A060355: n such that n and n+1 are powerful but n is not of the form 4m(m+1) where m and m+1 are powerful.
8, 675, 9800, 12167, 235224, 465124, 11309768, 4931691075, 5425069447
2 seqfan posts
Sun Nov 13 23:19:00 CET 2011 [seqfan] Re: Primitive pairs of powerful numbers