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 A213958 Number of n X n 0..4 matrices with row and column i=1..n having sum <= i*4 0

%I #4 Dec 18 2015 18:18:12

%S 5,275,199735,1839121115,214090209950060,314911377440218697950,

%T 5858129386840205449108592935

%N Number of n X n 0..4 matrices with row and column i=1..n having sum <= i*4

%C Column 4 of A213962

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jun 28 2012

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Last modified May 20 21:47 EDT 2024. Contains 372720 sequences. (Running on oeis4.)