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A204054 Number of (n+2)X8 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
37451727, 361569647, 2404876738, 18005605178, 135508809479, 1065898305547, 7515064468455, 56550046316647, 410996187334882, 3091339683357650, 22420992321577490, 166361632260722451, 1212902396590177130 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A204056

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..18

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A215130 A286037 A034645 * A206196 A272517 A246232

Adjacent sequences:  A204051 A204052 A204053 * A204055 A204056 A204057

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 09 2012

STATUS

approved

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Last modified September 22 21:07 EDT 2020. Contains 337291 sequences. (Running on oeis4.)