

A205612


Number of 5X(n+1) 0..3 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..3 introduced in row major order


1



9894, 248392, 5470216, 146904738, 3504441046, 97605128794, 2395790751806, 68866427394682, 1717050316673126, 50721942341231580, 1277171419921421952, 38606034361291323048, 978434080407420271360, 30151550154670667821138
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OFFSET

1,1


COMMENTS

Row 4 of A205609


LINKS

R. H. Hardin, Table of n, a(n) for n = 1..78


EXAMPLE

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


CROSSREFS

Sequence in context: A103810 A277944 A237917 * A205350 A187868 A072848
Adjacent sequences: A205609 A205610 A205611 * A205613 A205614 A205615


KEYWORD

nonn


AUTHOR

R. H. Hardin Jan 29 2012


STATUS

approved



