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A229419 Number of 5X5 0..n zero-diagonal arrays with corresponding row and column sums equal.

%I A229419 #6 Jul 23 2025 05:44:13
%S A229419 7736,3801411,345706336,11782824375,213067487016,2476905427101,
%T A229419 20800072613376,136134092151621,731603301365000,3351359707914031,
%U A229419 13453090382588256,48331016196789131,157962741320042456
%N A229419 Number of 5X5 0..n zero-diagonal arrays with corresponding row and column sums equal.
%C A229419 Row 5 of A229417
%H A229419 R. H. Hardin, <a href="/A229419/b229419.txt">Table of n, a(n) for n = 1..15</a>
%e A229419 Some solutions for n=1
%e A229419 ..0..0..1..0..1....0..1..1..0..0....0..0..0..1..1....0..0..0..1..1
%e A229419 ..0..0..0..1..1....1..0..1..0..0....1..0..0..1..0....0..0..1..0..0
%e A229419 ..0..1..0..1..0....0..0..0..1..1....0..1..0..0..1....1..1..0..0..0
%e A229419 ..1..0..0..0..1....0..1..0..0..1....1..0..1..0..1....0..0..1..0..1
%e A229419 ..1..1..1..0..0....1..0..0..1..0....0..1..1..1..0....1..0..0..1..0
%K A229419 nonn
%O A229419 1,1
%A A229419 _R. H. Hardin_ Sep 22 2013