A208586 - OEIS

A208586

Number of 6Xn 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

203, 3319375, 493060277544, 314946169382603268, 596705277048973363385024

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Row 6 of A208581

LINKS

Table of n, a(n) for n=1..5.

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..0....1..1..1..0....1..1..1..0....1..1..1..0

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

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

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

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

CROSSREFS

Sequence in context: A319783 A208306 A208786 * A208465 A208471 A348823

Adjacent sequences: A208583 A208584 A208585 * A208587 A208588 A208589

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 29 2012

STATUS

approved