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A263379 Number of (n+1)X(5+1) 0..4 arrays with each row and column divisible by 9, read as a base-5 number with top and left being the most significant digits. 1

%I #4 Oct 16 2015 08:12:58

%S 89,93378,161833750,271477636708,466607833464165,808208250265441905,

%T 1403458538939419648545,2437738823003642650564362,

%U 4234352541929425505608191870,7355053666297404181522472360604

%N Number of (n+1)X(5+1) 0..4 arrays with each row and column divisible by 9, read as a base-5 number with top and left being the most significant digits.

%C Column 5 of A263382.

%H R. H. Hardin, <a href="/A263379/b263379.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

%Y Cf. A263382.

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 16 2015

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Last modified August 27 17:01 EDT 2024. Contains 375471 sequences. (Running on oeis4.)