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A204346 Number of (n+2)X5 0..3 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..3 introduced in row major order 1
30378276, 22275534255, 16256855591536, 11860456910608960, 8653701637919899728, 6313899655904879255175, 4606746353051274080442020, 3361172935168170742873724992, 2452378030687848539033613343420 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A204351

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..34

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A107619 A320723 A187431 * A263644 A283619 A156420

Adjacent sequences:  A204343 A204344 A204345 * A204347 A204348 A204349

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 14 2012

STATUS

approved

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Last modified November 28 06:23 EST 2020. Contains 338699 sequences. (Running on oeis4.)