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A205242 Number of (n+1)X5 0..2 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in each of its horizontal and vertical neighbors 1
18148, 323806, 7051340, 144087952, 2954664074, 60907844595, 1253758820754, 25826772963664, 531753841353962, 10966785381217104, 225806941294781192, 4658026215140463264, 95926375405868551142, 1978420742738282021648 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A205246

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A224571 A251832 A250639 * A172936 A025029 A230948

Adjacent sequences:  A205239 A205240 A205241 * A205243 A205244 A205245

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 24 2012

STATUS

approved

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Last modified August 2 02:40 EDT 2021. Contains 346409 sequences. (Running on oeis4.)