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A205247 Number of (n+1)X(n+1) 0..1 arrays with the number of clockwise edge increases in every 2X2 subblock the same 1
16, 168, 5212, 387328, 67731268, 27913330476, 27149753088796, 62383316832685352, 338853014329060508764, 4353185098169744392741452, 132316928041105714306034574484, 9518293354852895518368238072987356 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A205255

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..14

EXAMPLE

Some solutions for n=4

..1..0..0..0..0....1..0..0..0..0....1..1..1..1..1....0..0..0..1..0

..1..1..0..1..0....1..0..1..0..1....1..1..1..1..1....1..1..0..1..0

..1..0..0..1..1....1..0..1..1..1....1..1..1..1..1....0..0..0..0..0

..1..1..1..1..0....1..1..1..0..1....1..1..1..1..1....1..1..0..1..0

..0..0..1..0..0....0..1..0..0..1....1..1..1..1..1....1..0..0..1..0

CROSSREFS

Sequence in context: A021744 A025445 A022740 * A067713 A017210 A283574

Adjacent sequences:  A205244 A205245 A205246 * A205248 A205249 A205250

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 24 2012

STATUS

approved

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Last modified September 24 14:46 EDT 2021. Contains 347643 sequences. (Running on oeis4.)