%I A047077
%S A047077 5,12,20,24,36,44,40,52,60,68,72,68,92,96,100,100,108,120,124,132,128,
%T A047077 148,140,144,172,180,180,168,180,204,192,212,204,220,240,212,244,232,
%U A047077 268,260,248,276,268,292,288,276,300,296,316,324,348,336,324,348,336
%N A047077 Number of pairs of integers (x,y) with n^2<= x^2+y^2 <= (n+1)^2.
%H A047077 T. D. Noe, <a href="b047077.txt">Table of n, a(n) for n=0..1000</a>
%Y A047077 a(n)=A000328(n+1)-A051132(n). Cf. A000328, A051132.
%Y A047077 Sequence in context: A017041 A139692 A099192 this_sequence A086570 A063559 
               A121291
%Y A047077 Adjacent sequences: A047074 A047075 A047076 this_sequence A047078 A047079 
               A047080
%K A047077 easy,nice,nonn
%O A047077 0,1
%A A047077 Klaus Strassburger (strass(AT)ddfi.uni-duesseldorf.de), Jan 26 2000