A281933 - OEIS

A281933

Number of nX5 0..1 arrays with no element equal 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 Feb 02 2017 08:21:47

%S 0,33,3573,105766,2714834,60084175,1216849775,23300375254,

%T 428250392864,7629943002132,132678096634884,2262509340153066,

%U 37965514525586842,628531537599590562,10286765597910167301,166699691600830412057

%N Number of nX5 0..1 arrays with no element equal 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 5 of A281936.

%H R. H. Hardin, <a href="/A281933/b281933.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A281936.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 02 2017