%I A154359
%S A154359 99,649,3699,9249,17299,27849,40899,56449,74499,95049,118099,143649,
%T A154359 171699,202249,235299,270849,308899,349449,392499,438049,486099,536649,
%U A154359 589699,645249,703299,763849,826899,892449,960499,1031049
%N A154359 a(n)=1250n^2-700n+99
%C A154359 Pell's equation X^2-AY^2=1, with X=a(n); A=25n^2-14n+2 [A154356], or 
               A=25n^2-36n+13 [A154355]; Y=250n-180 [A154360], or Y=250n-70 [A154361]
%F A154359 a(n)=1250n^2-700n+99
%e A154359 For n=(0), a(0)=99; n=1, a(1)=649; n=2, a(2)=3699
%Y A154359 Cf. A154359, A154360, A154361, A154355, A154357
%Y A154359 Sequence in context: A156757 A027579 A157659 this_sequence A061366 A135219 
               A093299
%Y A154359 Adjacent sequences: A154356 A154357 A154358 this_sequence A154360 A154361 
               A154362
%K A154359 nonn
%O A154359 1,1
%A A154359 Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 08 2009