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A204084 T(n,k)=Number of nXk 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1 8

%I #5 Mar 31 2012 12:37:00

%S 0,0,0,0,4,0,0,4,4,0,0,16,132,16,0,0,100,256,256,100,0,0,324,5260,

%T 11236,5260,324,0,0,1296,37636,107584,107584,37636,1296,0,0,5476,

%U 321696,3904576,13346532,3904576,321696,5476,0,0,21316,2951524,76212900

%N T(n,k)=Number of nXk 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1

%C Table starts

%C .0....0.......0..........0.............0................0...................0

%C .0....4.......4.........16...........100..............324................1296

%C .0....4.....132........256..........5260............37636..............321696

%C .0...16.....256......11236........107584..........3904576............76212900

%C .0..100....5260.....107584......13346532........553472676.........35085052464

%C .0..324...37636....3904576.....553472676......94591923364......11178644528704

%C .0.1296..321696...76212900...35085052464...11178644528704....4337212764978412

%C .0.5476.2951524.1650959424.1978079099364.1741263873230116.1498281295226032144

%H R. H. Hardin, <a href="/A204084/b204084.txt">Table of n, a(n) for n = 1..143</a>

%e Some solutions for n=5 k=3

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

%e ..0..1..0....1..1..1....1..1..1....1..1..1....1..1..1....1..1..1....1..2..1

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

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

%e ..1..1..1....1..1..1....1..1..2....1..1..1....0..1..0....0..1..0....1..0..1

%K nonn,tabl

%O 1,5

%A _R. H. Hardin_ Jan 10 2012

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Last modified March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)