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A203359 Number of nX5 binary arrays with every 1 immediately preceded by 0 to the left or above 1

%I #5 Mar 31 2012 12:36:56

%S 8,182,3042,55517,984703,17631496,314688054,5622720187,100426911671,

%T 1793946112019,32044214326230,572395728321380,10224472420371970,

%U 182635919619144937,3262355031315093696,58274202397081882837

%N Number of nX5 binary arrays with every 1 immediately preceded by 0 to the left or above

%C Column 5 of A203362

%H R. H. Hardin, <a href="/A203359/b203359.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 8*a(n-1) +148*a(n-2) +471*a(n-3) +578*a(n-4) -25*a(n-5) -302*a(n-6) +171*a(n-7) +90*a(n-8)

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 31 2011

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)