A278207 - OEIS

A278207

Number of nX7 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) (1,0) or (1,1), with upper left element zero.

%I #4 Nov 15 2016 12:25:48

%S 0,2208,251260,23732454,2644587148,297169006604,33056811286568,

%T 3676498268449668,409137247202506544,45530553691308851854,

%U 5066646847508250491070,563817868393293695820130

%N Number of nX7 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) (1,0) or (1,1), with upper left element zero.

%C Column 7 of A278208.

%H R. H. Hardin, <a href="/A278207/b278207.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

%Y Cf. A278208.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 15 2016