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A208501 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 1 1 vertically 11

%I #5 Mar 31 2012 12:37:23

%S 2,4,4,6,16,6,10,36,36,9,16,100,60,81,13,26,256,144,126,169,19,42,676,

%T 324,324,234,361,28,68,1764,756,828,650,456,784,41,110,4624,1728,2124,

%U 1794,1406,896,1681,60,178,12100,3996,5436,4992,4104,3024,1722,3600,88

%N T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 1 1 vertically

%C Table starts

%C ..2....4....6...10....16....26.....42......68.....110......178......288

%C ..4...16...36..100...256...676...1764....4624...12100....31684....82944

%C ..6...36...60..144...324...756...1728....3996....9180....21168....48708

%C ..9...81..126..324...828..2124...5436...13932...35676....91404...234108

%C .13..169..234..650..1794..4992..13806...38376..106236...295074...817362

%C .19..361..456.1406..4104.12654..37430..114494..341012..1037552..3103650

%C .28..784..896.3024..9912.33488.111328..374416.1249472..4192384.14013664

%C .41.1681.1722.6150.21976.79376.286754.1037300.3752320.13577396.49125954

%H R. H. Hardin, <a href="/A208501/b208501.txt">Table of n, a(n) for n = 1..1253</a>

%e Some solutions for n=4 k=3

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

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

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

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

%Y Column 1 is A000930(n+3)

%Y Column 2 is A207170

%Y Row 1 is A006355(n+2)

%Y Row 2 is A206981

%Y Row 3 is A207590

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Feb 27 2012

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Last modified September 12 22:20 EDT 2024. Contains 375855 sequences. (Running on oeis4.)