A210351 1/4 the number of (n+1)X5 0..3 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences

49484, 13288986, 3506487749, 934012605398, 248817068842201, 66307681156504928, 17671175952055398322, 4709507638686926395711, 1255126061290822709489429, 334502823235487329400306910

Offset

1,1

Comments

Column 4 of A210355

Links

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

Example

Some solutions for n=4
..2..0..3..3..0....2..0..0..1..0....3..2..0..1..0....2..0..1..2..1
..1..3..3..1..2....2..2..0..1..0....3..1..3..2..2....0..0..1..3..2
..2..2..1..1..2....2..0..0..0..0....1..1..2..2..0....2..0..2..2..1
..0..0..0..0..2....1..0..1..0..3....1..3..2..0..0....1..0..1..1..2
..1..1..0..2..2....0..0..0..0..0....3..3..1..1..0....2..1..0..0..3

Crossrefs

Sequence in context: A251910 A235172 A251026 * A234563 A251881 A187856

Adjacent sequences: A210348 A210349 A210350 * A210352 A210353 A210354

Keyword

nonn

Author

R. H. Hardin Mar 20 2012

Status

approved