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A266031
Number of nX6 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than itself.
1
55, 13796, 2045306, 408513208, 82171346791, 16683384355551, 3378465528248312, 684927787385220826, 138808963888717658013, 28134602812633017755802, 5702283377553374012400094, 1155743488848677525676248667
OFFSET
1,1
COMMENTS
Column 6 of A266033.
LINKS
EXAMPLE
Some solutions for n=2
..0..2..3..1..2..0....0..3..0..3..0..1....0..0..0..3..0..0....0..0..2..2..0..1
..1..0..0..2..0..1....1..0..1..1..3..0....1..3..0..2..3..0....0..0..1..1..3..0
CROSSREFS
Cf. A266033.
Sequence in context: A221734 A268167 A363869 * A267424 A221772 A221123
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 20 2015
STATUS
approved