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A229872 Number of 5X5 0..n arrays with corresponding row and column sums equal 1

%I #4 Oct 01 2013 14:10:17

%S 247552,923742873,354003288064,36821326171875,1656812779036416,

%T 41629349513286507,681576779395104768,8038582007461068429,

%U 73160330136500000000,539739832319262606581,3347559386080200916992

%N Number of 5X5 0..n arrays with corresponding row and column sums equal

%C Row 5 of A229870

%H R. H. Hardin, <a href="/A229872/b229872.txt">Table of n, a(n) for n = 1..15</a>

%e Some solutions for n=4

%e ..0..0..0..0..1....0..0..0..0..0....0..0..0..0..1....0..0..0..0..0

%e ..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0

%e ..0..0..3..0..4....0..0..3..2..3....0..0..1..2..4....0..0..0..1..3

%e ..0..0..1..2..3....0..0..4..3..2....0..0..4..0..1....0..0..2..2..3

%e ..1..0..3..4..2....0..0..1..4..1....1..0..2..3..1....0..0..2..4..3

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 01 2013

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)