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Number of nX7 0..1 arrays with no element unequal to a strict majority of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
1

%I #4 Dec 29 2016 11:49:41

%S 15,42,95,678,3376,16282,80825,377706,1780344,8321484,38431266,

%T 177322266,812861536,3712259660,16906747879,76738963064,347459922194,

%U 1569637145558,7075367986446,31833804360316,142976818494750,641124031114626

%N Number of nX7 0..1 arrays with no element unequal to a strict majority of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%C Column 7 of A280233.

%H R. H. Hardin, <a href="/A280232/b280232.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A280233.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 29 2016