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A207741 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically 10

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

%S 2,4,4,6,16,6,9,36,36,9,15,81,114,81,14,25,225,361,387,196,22,40,625,

%T 1425,1849,1414,484,35,64,1600,5625,10535,10201,5302,1225,56,104,4096,

%U 20550,60025,86355,58081,20265,3136,90,169,10816,75076,327075,731025

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

%C Table starts

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

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

%C ..6...36...114.....361.....1425.......5625.......20550.........75076

%C ..9...81...387....1849....10535......60025......327075.......1782225

%C .14..196..1414...10201....86355.....731025.....5959350......48580900

%C .22..484..5302...58081...733363....9259849...113534330....1392036100

%C .35.1225.20265..335241..6349893..120275089..2215586241...40813292529

%C .56.3136.78120.1946025.55343835.1573946929.43590708750.1207251562500

%H R. H. Hardin, <a href="/A207741/b207741.txt">Table of n, a(n) for n = 1..391</a>

%e Some solutions for n=4 k=3

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

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

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

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

%Y Column 1 is A001611(n+2)

%Y Column 2 is A207436

%Y Column 3 is A207712

%Y Row 1 is A006498(n+2)

%Y Row 2 is A189145(n+2)

%Y Row 3 is A207427

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Feb 19 2012

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)