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%I #3 Mar 30 2012 18:58:49
%S 1,1,1,1,3,1,1,7,7,1,1,13,21,13,1,1,21,43,43,21,1,1,31,73,91,73,31,1,
%T 1,43,111,157,157,111,43,1,1,57,157,241,273,241,157,57,1,1,73,211,343,
%U 421,421,343,211,73,1,1,91,273,463,601,651,601,463,273,91,1,1,111,343,601
%N Symmetric square array defined by T(n,k)=(k^2*n^2 + kn + 1), read by antidiagonals.
%e Rows begin
%e 1 1 1 1 1 1 ...
%e 1 3 7 13 21 31 ...
%e 1 7 21 43 73 111 ...
%e 1 13 43 91 157 241 ...
%e 1 21 73 157 273 421 ...
%Y Rows include A054569, A002061, A082040, A082041. Main diagonal is A059826.
%Y Cf. A082038.
%K easy,nonn,tabl
%O 0,5
%A _Paul Barry_, Apr 02 2003
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