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A199146 Number of nX5 0..3 arrays with values 0..3 introduced in row major order and each element equal to one or two horizontal and vertical neighbors 1
3, 393, 42420, 6235011, 839006010, 117380324984, 16158623337745, 2239304268913257, 309471298054332806, 42818034223579225138, 5921413251810033475103, 819050117505774849777870 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A199149

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..28

EXAMPLE

Some solutions for n=3

..0..0..0..0..1....0..0..1..1..1....0..0..1..1..1....0..0..1..0..0

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

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

CROSSREFS

Sequence in context: A120061 A187942 A244670 * A137023 A203563 A181990

Adjacent sequences:  A199143 A199144 A199145 * A199147 A199148 A199149

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 03 2011

STATUS

approved

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Last modified November 28 00:12 EST 2021. Contains 349395 sequences. (Running on oeis4.)