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Number of (n+1)X(5+1) 0..4 arrays with each row and column divisible by 13, read as a base-5 number with top and left being the most significant digits.
1

%I #4 Oct 18 2015 10:56:09

%S 9,9820,9407092,7338416019,8252778348422,9899034266254567,

%T 11867204068570389588,14148663526550669850520,

%U 16969874308627538817838998,20394918804374740260710652497,24511799179141501698128892261604

%N Number of (n+1)X(5+1) 0..4 arrays with each row and column divisible by 13, read as a base-5 number with top and left being the most significant digits.

%C Column 5 of A263439.

%H R. H. Hardin, <a href="/A263438/b263438.txt">Table of n, a(n) for n = 1..29</a>

%e Some solutions for n=2

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

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

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

%Y Cf. A263439.

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 18 2015