Search: id:A156464
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%I A156464
%S A156464 1,2,2,7,19,1430,9131,1559914,17481322,4701559354,99812199364,
%T A156464 42194032310078
%N A156464 Number of nXn arrays of squares of integers, symmetric about both diagonal 
               and antidiagonal, with all rows summing to 16.
%Y A156464 Sequence in context: A137249 A051769 A049955 this_sequence A156520 A069101 
               A138802
%Y A156464 Adjacent sequences: A156461 A156462 A156463 this_sequence A156465 A156466 
               A156467
%K A156464 nonn
%O A156464 1,2
%A A156464 Ron Hardin (rhhardin(AT)att.net) Feb 09 2009

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