A299387 - OEIS

%I #4 Feb 09 2018 08:08:25

%S 64,301,115,448,1112,1852,4929,11412,24191,59037,137098,312216,728670,

%T 1685304,3910660,9066080,21026361,48798033,113138469,262500850,

%U 609384725,1413457638,3280851818,7614781353,17670627214,41015215732,95198485725

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A299388.

%H R. H. Hardin, <a href="/A299387/b299387.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A299388.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 09 2018