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A267427
Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any west, northeast or northwest neighbors modulo 5 and the upper left element equal to 0.
0
24, 1, 1, 1, 1, 1, 1, 1, 1, 9, 65, 624, 5309, 38578, 239701, 1309340, 6447890, 29143104, 122531502, 484952549, 1822769330, 6559659490, 22756224972, 76595595448, 251727333628, 813474158085, 2607267986103
OFFSET
1,1
COMMENTS
Row 5 of A267425.
EXAMPLE
Some solutions for n=11
..0..0..0..0..1..1..2..2..3..3..4....0..1..1..1..2..2..3..3..4..4..0
..0..0..1..1..1..2..2..3..3..4..4....1..1..2..2..2..3..3..4..4..0..0
..1..1..1..2..2..2..3..3..4..4..4....2..2..2..3..3..3..4..4..0..0..1
..1..1..2..2..3..3..3..4..4..0..0....2..2..3..3..4..4..4..0..0..1..1
..1..2..2..3..3..4..4..4..0..0..0....2..3..3..4..4..0..0..0..1..1..1
CROSSREFS
Cf. A267425.
Sequence in context: A308304 A265090 A174560 * A040581 A305762 A040582
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 14 2016
STATUS
approved