A299843 - OEIS

%I #4 Feb 20 2018 08:23:50

%S 64,7181,175286,5966905,209649848,7216925214,250915415042,

%T 8769920586285,306309096924610,10700124572845331,373936238556214822,

%U 13068520058247622630,456719694485916765088,15961828473698137787106

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A299844.

%H R. H. Hardin, <a href="/A299843/b299843.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299844.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 20 2018