A281886 - OEIS

A281886

Number of nX6 0..1 arrays with no element equal to more than four of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%I #4 Feb 01 2017 09:24:14

%S 0,0,35002,1282388,38763782,1091754188,29340232714,763669110112,

%T 19447316121332,487171820681716,12046921218733166,294811468312002676,

%U 7153161608999029130,172321673446894993044,4126071137135127741830

%N Number of nX6 0..1 arrays with no element equal to more than four of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%C Column 6 of A281888.

%H R. H. Hardin, <a href="/A281886/b281886.txt">Table of n, a(n) for n = 1..171</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A281888.

%K nonn

%O 1,3

%A _R. H. Hardin_, Feb 01 2017