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A186953
1/729 the number of (n+2)X(n+2) 0..2 arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace
0
0, 3783, 5903759, 47796308777, 1557834542977401, 226578401020498502579
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OFFSET
1,2
COMMENTS
Diagonal of A186962
LINKS
Table of n, a(n) for n=1..6.
EXAMPLE
Some solutions for 4X4
..0..0..0..0....1..0..0..0....1..0..0..0....2..0..0..0....1..0..0..0
..2..2..1..1....0..1..1..2....2..0..1..1....1..0..1..0....0..2..2..1
..0..0..0..1....0..1..1..2....2..2..2..2....1..1..0..0....2..2..0..2
..2..0..0..0....2..0..2..1....2..2..0..2....1..1..0..1....2..0..1..2
CROSSREFS
Sequence in context: A243777 A135200 A348148 * A107539 A046837 A237733
Adjacent sequences: A186950 A186951 A186952 * A186954 A186955 A186956
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 01 2011
STATUS
approved

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Last modified November 7 23:09 EST 2024. Contains 377537 sequences.
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