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A220934 Equals two maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..2 nX5 array 1

%I #4 Dec 25 2012 11:00:29

%S 7,200,5912,172904,4983202,143495572,4129000493,118791182035,

%T 3417440488681,98313052773312,2828261800424005,81363108971612428,

%U 2340643785326878730,67335342944117783361,1937094540263542667587

%N Equals two maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..2 nX5 array

%C Column 5 of A220935

%H R. H. Hardin, <a href="/A220934/b220934.txt">Table of n, a(n) for n = 1..16</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 25 2012

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Last modified August 16 20:15 EDT 2024. Contains 375177 sequences. (Running on oeis4.)