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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
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A199230
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..30
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
Adjacent sequences: A199223 A199224 A199225 * A199227 A199228 A199229
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 04 2011
STATUS
approved

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Last modified October 28 04:55 EDT 2024. Contains 377146 sequences.
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