A278019 Number of 6Xn 0..2 arrays with every element plus 1 mod 3 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.

0, 7734, 2072344, 699721024, 233160226732, 77589535205794, 25821185682305524, 8592958824701790896, 2859602832674813814112, 951630300604165753555590, 316687355530488310683471550, 105388483387006153868422307268

Offset

1,2

Comments

Row 6 of A278014.

Links

R. H. Hardin, Table of n, a(n) for n = 1..176

Example

Some solutions for n=2
..0..2. .0..1. .0..1. .0..2. .0..1. .0..1. .0..1. .0..1. .0..1. .0..1
..1..1. .1..2. .0..2. .1..0. .2..2. .1..2. .1..2. .0..2. .0..2. .0..2
..0..0. .1..2. .2..0. .1..2. .0..1. .0..1. .0..0. .2..2. .1..0. .2..1
..2..2. .1..0. .1..1. .0..2. .2..1. .2..2. .2..2. .0..1. .1..2. .0..2
..0..1. .1..2. .0..2. .2..0. .2..0. .2..0. .1..1. .2..1. .2..1. .0..2
..0..0. .1..0. .1..0. .2..1. .1..2. .1..1. .0..2. .2..0. .0..2. .1..1

Crossrefs

Cf. A278014.

Sequence in context: A366490 A202597 A092004 * A146960 A179574 A229419

Adjacent sequences: A278016 A278017 A278018 * A278020 A278021 A278022

Keyword

nonn

Author

R. H. Hardin, Nov 08 2016

Status

approved