A302527 - OEIS

%I #4 Apr 09 2018 09:24:03

%S 8,98,730,5942,128242,1275348,16130212,303355178,3654880956,

%T 51530586242,829503866128,11159474949120,160761590077504,

%U 2423517947094100,34130627941733812,494058647385825910,7263463498716354406

%N Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A302528.

%H R. H. Hardin, <a href="/A302527/b302527.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302528.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 09 2018