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A266870 Number of 5Xn arrays containing n copies of 0..5-1 with no element 1 greater than its west or northeast neighbor modulo 5 and the upper left element equal to 0. 0
24, 2760, 530368, 132028418, 37478933496, 11567328302147, 3781726242152832, 1289651736397187033 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A266867.

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=2

..0..2....0..0....0..3....0..2....0..3....0..4....0..4....0..0....0..4....0..2

..4..2....2..4....1..0....1..3....3..2....3..3....1..1....4..2....3..2....4..1

..0..4....2..4....2..2....2..4....1..4....1..1....3..0....1..3....4..2....1..4

..1..3....3..1....4..4....4..3....2..0....0..2....4..3....3..1....1..3....3..0

..1..3....3..1....1..3....1..0....4..1....4..2....2..2....4..2....1..0....3..2

CROSSREFS

Cf. A266867.

Sequence in context: A296652 A092706 A209708 * A277003 A060902 A090444

Adjacent sequences:  A266867 A266868 A266869 * A266871 A266872 A266873

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 04 2016

STATUS

approved

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Last modified January 27 01:45 EST 2021. Contains 340443 sequences. (Running on oeis4.)