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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
0
203, 3319375, 493060277544, 314946169382603268, 596705277048973363385024
OFFSET
1,1
COMMENTS
Row 6 of A208581
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 29 2012
STATUS
approved