%I A132111
%S A132111 0,1,3,4,7,12,9,13,19,27,16,21,28,37,48,25,31,39,49,61,75,36,43,52,63,
%T A132111 76,91,108,49,57,67,79,93,109,127,147,64,73,84,97,112,129,148,169,192,
%U A132111 81,91,103,117,133,151,171,193,217,243,100,111,124,139,156,175,196,219
%N A132111 Triangle read by rows: T(n,k) = n^2 + k*n + k^2, 0<=k<=n.
%C A132111 Permutation of A003136, the Loeschian numbers;
%C A132111 row sums give A132112; central terms give A033582;
%C A132111 T(n,k+1) = T(n,k) + n+2*k+1;
%C A132111 T(n+1,k) = T(n,k) + 2*n+k+1;
%C A132111 T(n+1,k+1) = T(n,k) + 3*(n+k+1);
%C A132111 T(n,0) = A000290(n);
%C A132111 T(n,1) = A002061(n+1) for n>0;
%C A132111 T(n,2) = A117950(n+1) for n>1;
%C A132111 T(n,n-2) = A056107(n-1) for n>1;
%C A132111 T(n,n-1) = A003215(n-1) for n>0;
%C A132111 T(n,n) = A033428(n).
%Y A132111 Sequence in context: A041153 A041781 A042893 this_sequence A164831 A085188 
               A083561
%Y A132111 Adjacent sequences: A132108 A132109 A132110 this_sequence A132112 A132113 
               A132114
%K A132111 nonn,tabl
%O A132111 0,3
%A A132111 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 10 2007