A302002 - OEIS

%I #4 Mar 30 2018 12:32:17

%S 0,34,48,200,2856,14016,122232,813704,6066698,43025282,311301306,

%T 2237774274,16116010598,116014746014,835190383512,6012793756932,

%U 43286754359604,311629669798802,2243474218816140,16151152920460132

%N Number of 5Xn 0..1 arrays with every element equal to 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

%C Row 5 of A301999.

%H R. H. Hardin, <a href="/A302002/b302002.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A301999.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 30 2018