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A208465
Number of nX6 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors
1
203, 4132120, 671329819215, 440379403449903222, 838156242834826375910795, 3787532222733253394267947322830, 35487456577214016192433880229514302813, 625053889686420860521751650397504301747811997
OFFSET
1,1
COMMENTS
Column 6 of A208466
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..0..0..0....0..0..0..0..1..1....0..0..0..0..0..0....0..0..0..0..1..0
..0..1..0..1..0..2....0..1..0..0..0..0....0..1..0..1..0..0....0..1..0..0..0..0
..0..0..0..0..0..0....2..0..1..0..1..0....1..0..0..0..1..0....0..0..1..0..1..0
..2..0..1..0..1..0....1..0..0..2..0..0....0..1..0..0..2..0....0..0..0..0..0..0
CROSSREFS
Sequence in context: A208306 A208786 A208586 * A208471 A348823 A198722
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 27 2012
STATUS
approved