Search: id:A156488
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%I A156488
%S A156488 6,0,78,163,58704,590400,202480300,9256081380,4014312232560
%N A156488 Number of nXn arrays of squares of integers, symmetric under 90 degree 
               rotation, with all rows summing to 28.
%Y A156488 Sequence in context: A051768 A013323 A051767 this_sequence A057399 A145223 
               A072129
%Y A156488 Adjacent sequences: A156485 A156486 A156487 this_sequence A156489 A156490 
               A156491
%K A156488 nonn
%O A156488 4,1
%A A156488 Ron Hardin (rhhardin(AT)att.net) Feb 09 2009

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