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A204523 Number of (n+2)X4 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly one way, and new values 0..3 introduced in row major order 1
99975, 6099132, 410928067, 21954021414, 1313498195386, 82886770772555, 4890159721211038, 294294300117964072, 18042431883156922320, 1087890222088303122556, 65748461084953303391874 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A204525

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..50

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A268417 A232188 A032428 * A182698 A033427 A027663

Adjacent sequences:  A204520 A204521 A204522 * A204524 A204525 A204526

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 15 2012

STATUS

approved

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Last modified June 5 18:48 EDT 2020. Contains 334854 sequences. (Running on oeis4.)