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A207419 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 1 and 1 0 1 vertically 7

%I #5 Mar 31 2012 12:37:17

%S 2,4,4,6,16,6,9,36,36,9,14,81,92,81,14,21,196,241,241,196,21,31,441,

%T 720,742,720,441,31,46,961,1889,2760,2760,1889,961,46,68,2116,4719,

%U 8465,13260,8465,4719,2116,68,100,4624,12102,24317,50139,50139,24317,12102

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

%C Table starts

%C ..2....4.....6.....9.....14......21.......31........46........68........100

%C ..4...16....36....81....196.....441......961......2116......4624......10000

%C ..6...36....92...241....720....1889.....4719.....12102.....30414......74588

%C ..9...81...241...742...2760....8465....24317.....73405....214117.....601411

%C .14..196...720..2760..13260...50139...175903....656508...2338562....7964440

%C .21..441..1889..8465..50139..220882...891720...3919354..16153614...62844340

%C .31..961..4719.24317.175903..891720..4094666..21072638..99746042..440141222

%C .46.2116.12102.73405.656508.3919354.21072638.129528304.721835038.3728749264

%H R. H. Hardin, <a href="/A207419/b207419.txt">Table of n, a(n) for n = 1..611</a>

%e Some solutions for n=4 k=3

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

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

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

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

%Y Column 1 is A038718(n+2)

%Y Column 2 is A207069

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Feb 17 2012

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Last modified April 24 17:20 EDT 2024. Contains 371962 sequences. (Running on oeis4.)