A296538 - OEIS

%I #4 Dec 15 2017 08:46:05

%S 1,15,96,431,2104,10734,53995,270584,1360373,6842490,34397698,

%T 172916932,869345996,4370695957,21973721785,110473467193,555410077197,

%U 2792348324294,14038652292860,70579951706145,354843911694537

%N Number of nX5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 4 neighboring 1s.

%C Column 5 of A296541.

%H R. H. Hardin, <a href="/A296538/b296538.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A296541.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 15 2017