A220174 - OEIS

A220174

Sum of neighbor maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nX3 array

8, 48, 404, 4096, 31744, 262144, 2083808, 16728064, 134217728, 1073741824, 8586101128, 68719476736, 549755813888, 4397962625024, 35184307884032, 281474976710656, 2251796592459776, 18014398509481984, 144115183550922752

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

OFFSET

1,1

COMMENTS

Column 3 of A220177

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

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

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

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