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 A280068 Number of nX7 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. 1

%I

%S 8,41,281,2157,17468,145485,1188839,9934415,83159859,698377561,

%T 5887978374,49721599049,420447933252,3558743911515,30138816610398,

%U 255354080222866,2164080579680386,18343719103540772,155508281837894034

%N Number of nX7 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

%C Column 7 of A280069.

%H R. H. Hardin, <a href="/A280068/b280068.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A280069.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 25 2016

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Last modified March 21 13:52 EDT 2023. Contains 361402 sequences. (Running on oeis4.)