%I A060859
%S A060859 8,288,675,9800,235224,332928,1825200,11309768,384199200,592192224,
%T A060859 4931691075,13051463048,221322261600,443365544448,865363202000,
%U A060859 8192480787000,13325427460800,15061377048200,511643454094368
%N A060859 Powerful numbers of form n^2 - 1 such that n^2 is also powerful.
%H A060859 <a href="Sindx_Pow.html#powerful">Index entries for sequences related 
               to powerful numbers</a>
%F A060859 a(n)=x^2-1 and a(n)+1=x^2 are consecutive powerful numbers.
%e A060859 Factors of the first [ = x^2-1] terms of powerful pairs: 1825200 = 2.2.2.2.3.3.3.5.5.13.13; 
               11309768 = 2.2.2.29.29.41.41; 592192224 = 2.2.2.2.2.3.3.13.13.23.23.23; 
               4931691075 = 3.3.3.3.3.5.5.17.17.53.53. The 2nd terms are squares.
%Y A060859 Proper subset of A060355. Cf. A001694, A060860.
%Y A060859 Sequence in context: A136364 A089670 A060355 this_sequence A054607 A132592 
               A034977
%Y A060859 Adjacent sequences: A060856 A060857 A060858 this_sequence A060860 A060861 
               A060862
%K A060859 nonn
%O A060859 0,1
%A A060859 Labos E. (labos(AT)ana.sote.hu), May 04 2001
%E A060859 Corrected and extended by Jud McCranie (j.mccranie(AT)comcast.net), Jul 
               08 2001