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A198208
Number of 2nX8 0..3 arrays with values 0..3 introduced in row major order and each element unequal to exactly two horizontal and vertical neighbors
0
11029, 1660672, 276030525, 51432469614, 10120087499636
OFFSET
1,1
COMMENTS
Column 4 of A198209
EXAMPLE
Some solutions for n=3
..0..1..0..2..1..2..2..1....0..1..0..2..1..1..3..0....0..1..0..2..0..3..3..2
..1..1..0..2..1..1..1..0....1..1..0..2..0..0..3..3....1..1..0..2..0..0..0..1
..0..0..0..2..0..0..1..0....0..0..0..2..0..0..2..2....0..0..0..2..2..2..0..1
..1..1..1..2..0..0..1..1....1..1..1..2..2..2..2..1....1..1..1..1..1..2..0..0
..0..0..1..2..2..2..0..0....0..0..1..0..0..0..0..1....0..0..0..0..1..2..1..1
..3..0..1..3..3..2..0..2....3..0..1..0..1..1..0..2....1..2..2..0..1..2..1..2
CROSSREFS
Sequence in context: A156942 A325311 A164518 * A139409 A233789 A236151
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 22 2011
STATUS
approved