Search: id:A063066
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%I A063066
%S A063066 9,24,45,64,72,105,120,144,189,192,225,240,280,297,360,384,429,504,525,
%T A063066 576,585,640,672,720,765,792,840,864,945,960,969,1080,1144,1152,1197,
%U A063066 1200,1225,1320,1344,1449,1485,1512,1560,1584,1680,1725,1792,1800,1872
%N A063066 Numbers expressible as (a^2-1)(b^2-1).
%H A063066 K. S. Brown, <a href="http://www.mathpages.com/home/kmath275.htm">Numbers 
               Expressible as (a^2-1)(b^2-1)</a>
%e A063066 45 is on the list because 45=(2^2-1)(4^2-1)
%Y A063066 Cf. A057535, A063067, A063068.
%Y A063066 Sequence in context: A003343 A047720 A161449 this_sequence A097658 A067725 
               A001106
%Y A063066 Adjacent sequences: A063063 A063064 A063065 this_sequence A063067 A063068 
               A063069
%K A063066 nonn
%O A063066 1,1
%A A063066 Henry Bottomley (se16(AT)btinternet.com), Jul 08 2001

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