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A231710 T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no element having a strict majority of its horizontal, vertical and antidiagonal neighbors equal to one 9

%I #4 Nov 12 2013 15:10:13

%S 5,17,17,42,87,42,121,387,387,121,351,1903,2840,1903,351,978,9352,

%T 23584,23584,9352,978,2768,45126,197605,332529,197605,45126,2768,7851,

%U 218976,1601683,4734057,4734057,1601683,218976,7851,22168,1063266,13087828

%N T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no element having a strict majority of its horizontal, vertical and antidiagonal neighbors equal to one

%C Table starts

%C .....5.......17.........42...........121.............351................978

%C ....17.......87........387..........1903............9352..............45126

%C ....42......387.......2840.........23584..........197605............1601683

%C ...121.....1903......23584........332529.........4734057...........65213128

%C ...351.....9352.....197605.......4734057.......115091431.........2710953352

%C ...978....45126....1601683......65213128......2710953352.......108702736653

%C ..2768...218976...13087828.....907753996.....64449267435......4397103321129

%C ..7851..1063266..107398293...12682706594...1537649843980....178637016494076

%C .22168..5157832..878894477..176596945800..36565903346612...7231676877762957

%C .62688.25029089.7193285719.2460065350035.869868073036783.292858412207690044

%H R. H. Hardin, <a href="/A231710/b231710.txt">Table of n, a(n) for n = 1..264</a>

%F Empirical for column k:

%F k=1: [order 9]

%F k=2: [order 25]

%F k=3: [order 77]

%e Some solutions for n=3 k=4

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

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

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

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

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_, Nov 12 2013

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