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A198666 Number of nX5 0..4 arrays with values 0..4 introduced in row major order and each element equal to one or two horizontal and vertical neighbors 0
3, 401, 59281, 16089057, 4202762288, 1169280626549, 319298496941179, 88036039866608856, 24178531581358186023, 6652092118081667287328, 1828775268871126181679152 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A198669

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions with all values 0 to 4 for n=3

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

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

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

CROSSREFS

Sequence in context: A137023 A203563 A181990 * A330014 A305664 A152517

Adjacent sequences:  A198663 A198664 A198665 * A198667 A198668 A198669

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 28 2011

STATUS

approved

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Last modified November 29 18:41 EST 2021. Contains 349416 sequences. (Running on oeis4.)