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A206382 Number of (n+1)X8 0..3 arrays with every 2X2 subblock having the same number of equal diagonal or antidiagonal elements, and new values 0..3 introduced in row major order 0
3375401, 4648291369, 6728546532521, 9803619036105721, 14294968502144130953, 20848171803769792984489 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A206383

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A015408 A036472 A206168 * A114682 A157106 A123201

Adjacent sequences:  A206379 A206380 A206381 * A206383 A206384 A206385

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 07 2012

STATUS

approved

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Last modified May 16 19:46 EDT 2021. Contains 343951 sequences. (Running on oeis4.)