Search: id:A118013
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%I A118013
%S A118013 1,4,2,9,4,3,16,8,5,4,25,12,8,6,5,36,18,12,9,7,6,49,24,16,12,9,8,7,64,
%T A118013 32,21,16,12,10,9,8,81,40,27,20,16,13,11,10,9,100,50,33,25,20,16,14,12,
%U A118013 11,10,121,60,40,30,24,20,17,15,13,12,11,144,72,48,36,28,24,20,18,16,14
%N A118013 Triangle read by rows: T(n,k) = floor(n^2/k), 1<=k<=n.
%C A118013 T(n,1) = A000290(n); T(n,n) = n;
%C A118013 T(n,2) = A007590(n) for n>1;
%C A118013 T(n,3) = A000212(n) for n>2;
%C A118013 T(n,4) = A002620(n) for n>3;
%C A118013 T(n,5) = A118015(n) for n>4;
%C A118013 T(n,6) = A056827(n) for n>5;
%C A118013 central terms give A008574: T(2*k-1,k) = 4*(k-1)+0^(k-1);
%C A118013 row sums give A118014.
%Y A118013 Cf. A010766.
%Y A118013 Sequence in context: A076022 A064421 A051494 this_sequence A157647 A091452 
               A091450
%Y A118013 Adjacent sequences: A118010 A118011 A118012 this_sequence A118014 A118015 
               A118016
%K A118013 nonn
%O A118013 1,2
%A A118013 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 10 2006

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