A297548 - OEIS

%I #4 Dec 31 2017 15:07:06

%S 1,14,461,2205,12161,205888,2748026,25141813,257022624,3107723264,

%T 35428053457,379567391600,4182220329864,47242475898249,

%U 526748427926749,5818430376752828,64655311668945484,721026932221046595

%N Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 3 neighboring 1s.

%C Row 5 of A297544.

%H R. H. Hardin, <a href="/A297548/b297548.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A297544.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 31 2017