A318220 - OEIS

%I #4 Aug 21 2018 13:20:19

%S 0,16,413,13722,407121,12458503,381426500,11669008142,357007586982,

%T 10922535527287,334171256230583,10223857024851046,312795489864911224,

%U 9569873151878592164,292787060908281364545,8957721988741466827281

%N Number of nX6 0..1 arrays with every element unequal to 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 6 of A318222.

%H R. H. Hardin, <a href="/A318220/b318220.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A318222.

%K nonn

%O 1,2

%A _R. H. Hardin_, Aug 21 2018