cp's OEIS Frontend

A222774 Number of 6Xn 0..1 arrays with exactly floor(6Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.

%I A222774 #6 Jul 23 2025 03:03:19
%S A222774 0,175,2242,25772,333978,4479721,62017670,875957672,12560888618,
%T A222774 182209987206,2667426495648,39336570372328,583551389553584,
%U A222774 8699133677297779,130203654030371640,1955400385644628586
%N A222774 Number of 6Xn 0..1 arrays with exactly floor(6Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
%C A222774 Row 6 of A222769
%H A222774 R. H. Hardin, <a href="/A222774/b222774.txt">Table of n, a(n) for n = 1..36</a>
%e A222774 Some solutions for n=3
%e A222774 ..0..1..0....0..1..1....0..0..0....0..0..0....0..0..0....0..0..0....0..0..1
%e A222774 ..0..1..1....1..1..1....0..0..0....0..0..1....0..0..0....1..0..1....1..0..1
%e A222774 ..0..1..0....1..1..1....0..0..0....0..0..1....0..1..1....0..0..0....1..0..1
%e A222774 ..0..0..0....0..1..0....1..0..1....1..0..1....0..1..1....0..0..0....0..0..0
%e A222774 ..0..0..0....0..0..0....0..1..1....1..0..0....0..1..0....0..0..0....0..0..0
%e A222774 ..0..0..0....0..0..1....0..1..0....0..0..0....1..1..1....1..0..1....0..0..0
%K A222774 nonn
%O A222774 1,2
%A A222774 _R. H. Hardin_ Mar 05 2013