A183487 - OEIS

A183487

Number of nX4 0..3 arrays with every element equal to either the sum mod 4 of its vertical neighbors or the sum mod 4 of its horizontal neighbors

10, 400, 1859, 17260, 295753, 2389384, 22721738, 283516092, 2756716450, 27258639012, 302118088795, 3099237521787, 31465624971995, 334218914293045, 3472848277046483, 35747092755177221, 374202463026001299

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OFFSET

1,1

COMMENTS

Column 4 of A183492

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..90

EXAMPLE

Some solutions for 3X4

..0..0..3..3....0..0..1..1....2..2..0..0....1..1..0..0....0..0..0..0

..2..0..0..0....2..0..2..2....1..1..0..1....0..0..0..1....2..1..3..2

..2..0..0..0....2..0..1..1....3..3..0..1....0..0..0..1....2..2..0..2

CROSSREFS

Sequence in context: A013404 A013402 A013406 * A172505 A098722 A162677

Adjacent sequences: A183484 A183485 A183486 * A183488 A183489 A183490

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 05 2011

STATUS

approved