A302282 - OEIS

%I #7 Apr 05 2018 04:08:54

%S 0,61,269,353,1219,3621,14125,38410,108141,360173,1180191,3638642,

%T 10951971,34382642,110622932,345400729,1067870597,3335600289,

%U 10545285109,33108634169,103257933927,322928627439,1014950085156,3186150407886

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

%C Row 5 of A302278.

%H R. H. Hardin, <a href="/A302282/b302282.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5:

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

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

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

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

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

%Y Cf. A302278.

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 04 2018