A233017 Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 in row major order

365, 176474, 85827722, 41775098873, 20336458202315, 9900284810558324, 4819736584585663322, 2346387082638325434623, 1142289504742332894080090, 556099819337132688338013569, 270725603659451277161400600662

Offset

1,1

Comments

Column 7 of A233018

Links

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

R. H. Hardin, Empirical recurrence of order 33

Formula

Empirical recurrence of order 33 (see link above)

Example

Some solutions for n=2
..0..0..0..1..0..2..2....0..0..1..1..1..0..2....0..0..1..1..3..2..2
..2..0..1..0..0..0..0....1..0..1..0..1..0..2....2..0..1..3..2..2..3

Crossrefs

Sequence in context: A241376 A208566 A209099 * A233081 A209106 A208257

Adjacent sequences: A233014 A233015 A233016 * A233018 A233019 A233020

Keyword

nonn

Author

R. H. Hardin, Dec 03 2013

Status

approved