A285147 Number of n X 3 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

1, 14, 113, 786, 5742, 42176, 314197, 2359900, 17852820, 135811506, 1037931930, 7962744490, 61286318733, 473008466100, 3659466705689, 28371299519552, 220366440810204, 1714457590259554, 13358188660727160, 104218249427651818

Offset

1,2

Comments

Column 3 of A285152.

Links

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

Example

Some solutions for n=4
..1..0..0. .0..1..1. .0..0..0. .1..1..0. .1..1..1. .1..1..1. .0..1..0
..0..0..1. .0..0..1. .1..0..1. .0..0..0. .1..1..0. .1..0..0. .1..1..1
..0..0..0. .0..0..1. .0..1..0. .0..0..0. .0..0..0. .0..1..1. .0..0..0
..1..1..0. .0..0..0. .1..0..0. .1..0..1. .1..0..1. .0..1..0. .1..0..0

Crossrefs

Cf. A285152.

Sequence in context: A002409 A155655 A007817 * A327361 A293874 A044346

Adjacent sequences: A285144 A285145 A285146 * A285148 A285149 A285150

Keyword

nonn

Author

R. H. Hardin, Apr 12 2017

Status

approved