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A208579 Number of nX4 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors 1
15, 3024, 2946848, 7289707650, 36182978136598, 314946169382603268, 4397499594659018513529, 92408426611916813238982284, 2785236864744413991459135045397, 115957546355673301589831649844689014 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A208581

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..15

EXAMPLE

Some solutions for n=4

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

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

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

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

CROSSREFS

Sequence in context: A249965 A108281 A232455 * A080691 A208584 A211903

Adjacent sequences:  A208576 A208577 A208578 * A208580 A208581 A208582

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 29 2012

STATUS

approved

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Last modified October 18 14:14 EDT 2021. Contains 348068 sequences. (Running on oeis4.)