A293089 - OEIS

A293089

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

0, 1, 53, 486, 4091, 32070, 246852, 1897509, 14578434, 112390406, 867693603, 6716080364, 52061270779, 404329966577, 3144612848086, 24493415901992, 191015933608631, 1491484435347360, 11658153191250672, 91217811828544156

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

OFFSET

1,3

COMMENTS

Row 3 of A293087.

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

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

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