A297732 - OEIS

%I #4 Jan 04 2018 22:17:14

%S 1,145,700,4795,82549,673171,6241242,74469526,718454750,7237789501,

%T 78605147646,802756282257,8321237610322,88309948248405,

%U 920709083264361,9652601225861871,101986973953809025,1072161304466219489

%N Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 4 neighboring 1s.

%C Column 7 of A297733.

%H R. H. Hardin, <a href="/A297732/b297732.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A297733.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 04 2018