A298393 - OEIS

%I #4 Jan 18 2018 08:08:18

%S 3,23,63,432,2231,13271,81019,454822,2647771,15705120,91017707,

%T 531809890,3122451308,18251243783,106758611022,625185452829,

%U 3659138751517,21414194993312,125344300498672,733690661655699,4294342754282802

%N Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

%C Column 5 of A298396.

%H R. H. Hardin, <a href="/A298393/b298393.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A298396.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 18 2018