A285752 - OEIS

A285752

Number of 3 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

0, 14, 105, 630, 4850, 31276, 250592, 1727836, 13831303, 99330350, 789537708, 5828000730, 46064702150, 346391183886, 2727741658914, 20778683750294, 163289874109963, 1255321900392396, 9855914786067634, 76271581305888386

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

OFFSET

1,2

COMMENTS

Row 3 of A285750.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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