A220578 - OEIS

%I #3 Dec 16 2012 12:08:24

%S 64,5240,436288,33180533,2449921734,178051989526,12835487766480

%N Equals one maps: number of nX7 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 nX7 array

%C Column 7 of A220579

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 16 2012