This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A081206 #7 Aug 23 2024 20:58:14
%S A081206 1,1,1,1,2,1,1,2,2,1,1,3,3,3,1,1,3,4,4,3,1,1,4,6,7,6,4,1,1,4,7,9,9,7,
%T A081206 4,1,1,5,10,14,16,14,10,5,1,1,5,11,17,21,21,17,11,5,1,1,6,15,25,34,37,
%U A081206 34,25,15,6,1,1,6,16,29,42,50,50,42,29,16,6,1,1,7,21,41,64,82,89,82,64,41
%N A081206 Correlation matrix of triangle A046854.
%C A081206 Main diagonal is A081207.
%F A081206 As a square array, defined by T1(i, j) = Sum_{k=0..min(i, j)} T(i, k)*T(j, k), T(i, j)=A046854(i, j)=binomial(floor((i+j)/2), j).
%K A081206 easy,nonn,tabl
%O A081206 0,5
%A A081206 _Paul Barry_, Mar 11 2003