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A198531
Number of 2nX8 0..2 arrays with values 0..2 introduced in row major order and each element equal to exactly one horizontal or vertical neighbor
0
492, 74582, 12510524, 2223874372, 411119156729, 77956630302044, 15021391650662681, 2923455266600557870, 572454626428774679082, 112514115501137650870546, 22164495447174669745358050
OFFSET
1,1
COMMENTS
Column 4 of A198532
EXAMPLE
Some solutions for n=3
..0..0..1..1..2..1..0..1....0..0..1..1..2..1..2..2....0..0..1..1..2..2..0..0
..1..1..0..0..2..1..0..1....1..1..0..0..2..1..0..0....1..1..0..0..1..1..2..2
..0..0..2..2..1..2..1..0....0..0..2..2..0..0..1..1....0..0..1..1..0..0..1..1
..1..1..0..0..1..2..1..0....1..1..0..0..1..1..2..2....1..1..0..0..1..1..0..0
..0..0..1..2..0..1..0..1....0..0..1..1..0..0..1..1....2..2..1..1..2..2..1..1
..2..2..1..2..0..1..0..1....1..1..0..0..1..1..2..2....1..1..0..0..1..1..2..2
CROSSREFS
Sequence in context: A234667 A231455 A007242 * A300058 A251540 A116207
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 26 2011
STATUS
approved