A302746 - OEIS

%I #4 Apr 12 2018 11:25:41

%S 64,8192,630604,50347423,4104946296,336148647504,27552364197684,

%T 2259775666820199,185346624306819175,15203212791707362697,

%U 1247058011926331112543,102291835163573811251710

%N Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 7 of A302741.

%H R. H. Hardin, <a href="/A302746/b302746.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..0..0..0. .0..0..0..0..0. .0..0..0..0..0

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

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

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

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

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

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

%Y Cf. A302741.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 12 2018