A219152 - OEIS

A219152

Unchanging value maps: number of nX4 binary arrays indicating the locations of corresponding elements unequal to no horizontal, antidiagonal or vertical neighbor in a random 0..1 nX4 array

7, 21, 104, 531, 2708, 13725, 69784, 354500, 1800573, 9147029, 46470551, 236075721, 1199269936, 6092401321, 30950120371, 157229758186, 798741995975, 4057687878111, 20613461578083, 104718433050887, 531979987846229

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 4 of A219156

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..53

EXAMPLE

Some solutions for n=3

..1..1..0..0....0..0..1..1....1..0..0..1....0..0..0..0....1..1..1..0

..1..1..0..0....0..0..0..0....1..0..0..1....0..0..0..0....1..1..0..0

..1..1..0..0....0..0..0..0....1..0..0..1....1..0..0..1....1..1..0..0