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 A208422 Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 1 vertically 1

%I

%S 13,169,611,3835,18395,100113,512525,2702193,14044303,73505289,

%T 383392451,2003126697,10456915209,54611619153,285148941623,

%U 1489042615021,7775302008851,40601362677837,212010307642445,1107075047855985

%N Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 1 vertically

%C Row 5 of A208420

%H R. H. Hardin, <a href="/A208422/b208422.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = a(n-1) +23*a(n-2) +11*a(n-3) -83*a(n-4) -21*a(n-5) +96*a(n-6) +12*a(n-7) -42*a(n-8) -2*a(n-9) +6*a(n-10)

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 26 2012

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Last modified December 3 15:03 EST 2022. Contains 358534 sequences. (Running on oeis4.)