A283665 - OEIS

A283665

Number of nX7 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

%I #4 Mar 13 2017 09:55:21

%S 0,264,376594,15351085,387076338,7883014615,140913280266,

%T 2326415367317,36332244115510,545100865508798,7936175643012759,

%U 112838485787858089,1574294739609758663,21624782468994463462,293202298856554538798

%N Number of nX7 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

%C Column 7 of A283666.

%H R. H. Hardin, <a href="/A283665/b283665.txt">Table of n, a(n) for n = 1..42</a>

%e Some solutions for n=2

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

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

%Y Cf. A283666.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 13 2017