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.

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.

Links

Table of n, a(n) for n=1..27.

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

Adjacent sequences: A267424 A267425 A267426 * A267428 A267429 A267430

Keyword

nonn

Author

R. H. Hardin, Jan 14 2016

Status

approved