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A207774 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 0 vertically 10

%I #5 Mar 31 2012 12:37:19

%S 2,4,4,6,16,6,10,36,36,9,16,100,84,81,14,26,256,292,192,196,21,42,676,

%T 912,828,450,441,31,68,1764,2812,3130,2514,972,961,46,110,4624,8928,

%U 11230,11950,7164,2040,2116,68,178,12100,28152,43260,49122,43264,20104

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

%C Table starts

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

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

%C ..6...36...84...292....912....2812.....8928.....28152......87972......277292

%C ..9...81..192...828...3130...11230....43260....163710.....604340.....2295512

%C .14..196..450..2514..11950...49122...240346...1128862....4877154....23327018

%C .21..441..972..7164..43264..195160..1246206...7381202...35627804...220514498

%C .31..961.2040.20104.157472..759482..6513576..49975640..259077468..2150453548

%C .46.2116.4278.57458.597090.3023026.35632160.364308938.1972417684.22562076620

%H R. H. Hardin, <a href="/A207774/b207774.txt">Table of n, a(n) for n = 1..513</a>

%e Some solutions for n=4 k=3

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

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

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

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

%Y Column 1 is A038718(n+2)

%Y Column 2 is A207069

%Y Row 1 is A006355(n+2)

%Y Row 2 is A206981

%Y Row 3 is A207341

%Y Row 4 is A207342

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Feb 20 2012

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)