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A186806 T(n,k)=Number of (n+2)X(k+2) binary arrays with no 3X3 subblock commuting with any horizontal or vertical neighbor 3X3 subblock 10

%I #5 Mar 31 2012 12:36:06

%S 512,3984,3984,31204,59907,31204,244558,906615,906615,244558,1916364,

%T 13730715,26628581,13730715,1916364,15016660,207885695,782510382,

%U 782510382,207885695,15016660,117671951,3147544633,22986441710

%N T(n,k)=Number of (n+2)X(k+2) binary arrays with no 3X3 subblock commuting with any horizontal or vertical neighbor 3X3 subblock

%C Table starts

%C .........512............3984.............31204.............244558

%C ........3984...........59907............906615...........13730715

%C .......31204..........906615..........26628581..........782510382

%C ......244558........13730715.........782510382........44618824642

%C .....1916364.......207885695.......22986441710......2543130767720

%C ....15016660......3147544633......675297305236....144968185692408

%C ...117671951.....47657171957....19839195220290...8263791225579948

%C ...922087441....721577251158...582841090096150.471067696528736345

%C ..7225552800..10925394777419.17122871714488347

%C .56620029719.165421364939032

%H R. H. Hardin, <a href="/A186806/b186806.txt">Table of n, a(n) for n = 1..71</a>

%e Some solutions for 5X4

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

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

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

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

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

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Feb 26 2011

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Last modified September 15 20:25 EDT 2024. Contains 375955 sequences. (Running on oeis4.)