|
%I #6 May 28 2021 14:49:44
%S 0,512,7575,196185,2645385,79612578,1139211468,36347447930,
%T 539406313075,17697303249138,268539430883934,8952558217033179,
%U 137856342447857961,4642930013771229936,72224464903123955127,2449378469060543554130
%N Number of 7 X n 0..1 arrays with exactly floor(7 X n/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
%C Row 7 of A222769.
%H R. H. Hardin, <a href="/A222775/b222775.txt">Table of n, a(n) for n = 1..25</a>
%e Some solutions for n=3
%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..0..0....0..0..0
%e ..1..0..1....0..0..0....0..0..0....0..0..0....1..0..0....0..0..1....0..0..0
%e ..1..1..1....1..0..0....0..0..0....0..1..0....0..1..1....0..0..1....0..1..1
%e ..1..0..0....0..0..1....1..1..1....1..1..1....1..1..1....1..1..1....1..1..0
%e ..1..0..0....1..0..0....1..1..1....1..0..1....1..1..1....1..1..1....0..1..1
%e ..0..0..0....1..1..1....1..0..1....0..0..0....0..1..1....1..1..0....1..1..0
%e ..0..0..0....1..1..1....1..0..0....0..0..0....1..1..1....0..1..0....1..1..1
%Y Cf. A222769.
%K nonn
%O 1,2
%A _R. H. Hardin_ Mar 05 2013
| 