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A199226
Number of nX4 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and every element equal to zero or one horizontal or vertical neighbors
1
6, 148, 1114, 55956, 1167274, 9196334, 530601540, 11633434848, 92326218546, 5690918294602, 127860411550976, 1019724611977366, 65238218370369084, 1488224431249789464, 11906181377018139524, 780082724283681110224
OFFSET
1,1
COMMENTS
Column 4 of A199230
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0....0..1..0..2....0..1..0..0....0..1..0..0....0..1..0..2
..1..0..2..2....0..2..1..1....0..1..2..2....1..0..2..2....0..2..2..1
..2..1..1..0....2..0..2..0....1..2..1..0....1..2..1..1....1..0..1..2
..0..0..2..2....2..1..0..1....0..2..1..0....2..0..2..0....0..2..0..2
..2..2..1..1....1..2..2..1....2..1..2..1....0..1..1..2....1..2..1..1
CROSSREFS
Sequence in context: A063419 A065986 A375780 * A012791 A347842 A264645
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 04 2011
STATUS
approved