%I #7 Apr 30 2014 01:27:39
%S 1,4,4,9,16,9,16,36,36,16,25,64,81,64,25,36,100,144,144,100,36,49,144,
%T 225,256,225,144,49,64,196,324,400,400,324,196,64,81,256,441,576,625,
%U 576,441,256,81,100,324,576,784,900,900,784,576,324,100,121,400,729
%N Multiplication table of the square numbers read by antidiagonals.
%C sum_{k=0..2n-2} (-1)^k*a(A000124(2n-2)+k-1) = n. See A003991. - _Charlie Marion_, Apr 22 2013
%F G.f.: [xy(1+x)(1+y)] / [(1-x)^3 * (1-y)^3 ]. - _Ralf Stephan_, Oct 27 2004
%e 1; 4,4; 9,16,9; 16,36,36,16; ...
%Y Cf. A003991, A098358, A098360, A098361.
%K nonn,tabl
%O 0,2
%A Douglas Stones (dssto1(AT)student.monash.edu.au), Sep 04 2004