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A207908 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 0 1 1 vertically 11

%I #5 Mar 31 2012 12:37:20

%S 2,4,4,6,16,6,9,36,36,9,15,81,102,81,13,25,225,289,261,169,18,40,625,

%T 1071,841,611,324,25,64,1600,3969,4089,2209,1278,625,34,104,4096,

%U 13230,19881,13865,5041,2625,1156,46,169,10816,44100,80511,87025,39831,11025

%N T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 0 1 1 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..102...289...1071....3969....13230.....44100.....153090......531441

%C ..9...81..261...841...4089...19881....80511....326041....1428071.....6255001

%C .13..169..611..2209..13865...87025...417425...2002225...10896915....59305401

%C .18..324.1278..5041..39831..314721..1726758...9474084...62431074...411400089

%C .25..625.2625.11025.110775.1113025..6835345..41977441..336253621..2693506201

%C .34.1156.5134.22801.289467.3674889.24832818.167806116.1627138986.15777620881

%H R. H. Hardin, <a href="/A207908/b207908.txt">Table of n, a(n) for n = 1..513</a>

%e Some solutions for n=4 k=3

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

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

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

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

%Y Column 1 is A171861(n+1)

%Y Column 2 is A207025

%Y Row 1 is A006498(n+2)

%Y Row 2 is A189145(n+2)

%Y Row 3 is A207704

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Feb 21 2012

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)