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 A217633 Number of nX4 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..1 nX4 array 1

%I

%S 6,38,244,1418,8706,52120,315378,1900838,11472148,69210290,417586442,

%T 2519466108,15201104542,91714930026,553357475040,3338651662490,

%U 20143579337906,121535200857060,733276159043790,4424182455856594

%N Number of nX4 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..1 nX4 array

%C Column 4 of A217637

%H R. H. Hardin, <a href="/A217633/b217633.txt">Table of n, a(n) for n = 1..64</a>

%F Empirical: a(n) = 4*a(n-1) +20*a(n-2) -29*a(n-3) -124*a(n-4) +55*a(n-5) +330*a(n-6) -57*a(n-7) -498*a(n-8) -291*a(n-9) +965*a(n-10) +676*a(n-11) -991*a(n-12) -659*a(n-13) +771*a(n-14) +610*a(n-15) -581*a(n-16) -78*a(n-17) -36*a(n-18) +32*a(n-19) -94*a(n-20) +32*a(n-21) +68*a(n-22) -16*a(n-23)

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 09 2012

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Last modified March 25 15:02 EDT 2019. Contains 321470 sequences. (Running on oeis4.)