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A206175 Number of 7X(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
609086, 53494742, 7934434238, 1412613762182, 261163772277422, 48801583349072774 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A206169

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A340924 A218107 A274173 * A205429 A308279 A195281

Adjacent sequences:  A206172 A206173 A206174 * A206176 A206177 A206178

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 04 2012

STATUS

approved

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Last modified January 28 12:42 EST 2022. Contains 350656 sequences. (Running on oeis4.)