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A267198
Number of nX(n+2) arrays of permutations of n+2 copies of 0..n-1 with every element equal to or 1 greater than any north, southwest or northwest neighbors modulo n and the upper left element equal to 0.
0
1, 35, 11, 23, 47, 92, 166, 285, 460, 717, 1068, 1554, 2187, 3026, 4082, 5436
OFFSET
1,2
COMMENTS
Superdiagonal 2 of A267197.
EXAMPLE
Some solutions for n=4
..0..1..2..3..3..0....0..1..2..2..3..0....0..1..1..2..3..0....0..1..1..2..3..3
..1..1..2..3..0..0....1..1..2..3..3..0....0..1..2..2..3..0....0..1..1..2..3..3
..1..2..2..3..0..1....1..1..2..3..3..0....1..1..2..3..3..0....0..1..2..2..3..0
..2..2..3..3..0..1....1..2..2..3..0..0....1..2..2..3..3..0....0..1..2..2..3..0
CROSSREFS
Cf. A267197.
Sequence in context: A277079 A248477 A051050 * A267140 A348893 A088830
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 11 2016
STATUS
approved