A317213 - OEIS

%I #4 Jul 23 2018 19:40:17

%S 1,272,2800,76951,1987026,53479785,1441577878,39018757534,

%T 1057115569193,28657560496965,777057625622689,21072505461542979,

%U 571478563333369291,15498629347798361008,420330581884029825365,11399627217541998213235

%N Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A317215.

%H R. H. Hardin, <a href="/A317213/b317213.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317215.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jul 23 2018