A298293 - OEIS

%I #4 Jan 16 2018 08:56:01

%S 64,301,115,448,1084,1798,4679,10688,22503,53875,123435,278930,642076,

%T 1469878,3378674,7738804,17769468,40807932,93610115,214883906,

%U 493564409,1132812315,2601500535,5974070555,13717158924,31501633865,72344724752

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

%C Column 7 of A298294.

%H R. H. Hardin, <a href="/A298293/b298293.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A298294.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 16 2018