A299139 - OEIS

%I #4 Feb 03 2018 09:31:23

%S 3,236,6205,143548,3426869,81988764,1958821107,46801360032,

%T 1118229413140,26717976955184,638375195180545,15252759731195845,

%U 364435654101670351,8707496129258580692,208049042144382510120,4970935766069111855568

%N Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

%C Column 5 of A299142.

%H R. H. Hardin, <a href="/A299139/b299139.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299142.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 03 2018