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A204052 Number of (n+2)X6 0..3 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order 1
622031, 5883499, 39646479, 316144367, 2336174650, 18005605178, 133138952807, 1021696725403, 7600400348007, 57596403355943, 431103751656442, 3265443131997842, 24492821001141386, 185016562122791635 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A204056

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..84

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A254809 A253818 A236064 * A161533 A174975 A053877

Adjacent sequences:  A204049 A204050 A204051 * A204053 A204054 A204055

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 09 2012

STATUS

approved

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Last modified September 18 12:28 EDT 2020. Contains 337169 sequences. (Running on oeis4.)