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A208108 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 1 0 vertically 11

%I #5 Mar 31 2012 12:37:21

%S 2,4,4,6,16,6,9,36,36,9,15,81,78,81,14,25,225,169,171,196,22,40,625,

%T 611,361,406,484,35,64,1600,2209,1805,841,990,1225,56,104,4096,6016,

%U 9025,6235,2025,2485,3136,90,169,10816,16384,25555,46225,22995,5041,6328,8100

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

%C Table starts

%C ..2....4....6.....9.....15.......25.......40.......64........104.........169

%C ..4...16...36....81....225......625.....1600.....4096......10816.......28561

%C ..6...36...78...169....611.....2209.....6016....16384......51840......164025

%C ..9...81..171...361...1805.....9025....25555....72361.....292941.....1185921

%C .14..196..406...841...6235....46225...134160...389376....2189616....12313081

%C .22..484..990..2025..22995...261121...768544..2262016...18608992...153091129

%C .35.1225.2485..5041..89815..1600225..4747545.14085009..176312187..2207026441

%C .56.3136.6328.12769.361261.10220809.30461016.90782784.1769397240.34486347025

%H R. H. Hardin, <a href="/A208108/b208108.txt">Table of n, a(n) for n = 1..845</a>

%e Some solutions for n=10 k=3

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

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

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

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

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

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

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

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

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

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

%Y Column 1 is A001611(n+2)

%Y Column 2 is A207436

%Y Row 1 is A006498(n+2)

%Y Row 2 is A189145(n+2)

%Y Row 3 is A207730

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Feb 23 2012

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Last modified May 6 22:54 EDT 2024. Contains 372297 sequences. (Running on oeis4.)