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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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 03 2011
STATUS
approved

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Last modified May 28 22:13 EDT 2024. Contains 372921 sequences. (Running on oeis4.)