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A206176 Number of 8X(n+1) 0..3 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..3 introduced in row major order 0
5514982, 850283062, 257597022598, 99795262195942, 41314757480152390, 17594902146494956438 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A206169

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A230793 A263197 A283652 * A205430 A208455 A207825

Adjacent sequences:  A206173 A206174 A206175 * A206177 A206178 A206179

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 04 2012

STATUS

approved

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Last modified May 18 23:31 EDT 2022. Contains 353826 sequences. (Running on oeis4.)