A296038 - OEIS

%I #6 Jan 02 2022 17:13:26

%S 1,271,2266,15399,285366,3650122,39608385,518787061,6686146382,

%T 81902283398,1032256490947,13096735519428,164428864143823,

%U 2070803545260672,26150087072053258,329684472487581670

%N Number of n X 7 0..1 arrays with each 1 adjacent to 2 or 4 king-move neighboring 1's.

%C Column 7 of A296039.

%H R. H. Hardin, <a href="/A296038/b296038.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A296039.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 03 2017