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A167256 Number of ways to partition an n X 8 grid into 2 connected equal-area regions 0
1, 8, 355, 10164, 277969 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
EXAMPLE
Some solutions for n=3
...1.1.1.1.2.2.2.2...1.1.1.1.1.1.1.1...1.1.1.1.1.1.1.1...1.1.1.1.1.1.1.1
...1.2.2.2.2.1.2.2...2.1.1.2.2.1.1.2...1.2.2.2.1.2.2.1...2.2.1.2.2.2.1.1
...1.1.1.1.1.1.2.2...2.2.2.2.2.2.2.2...1.2.2.2.2.2.2.2...2.2.2.2.2.2.2.1
------
...1.1.2.2.2.2.2.2...1.1.1.1.1.2.2.2...1.1.1.2.2.2.2.2...1.1.1.1.1.1.1.2
...1.1.1.1.1.1.2.2...1.1.1.1.2.2.2.2...1.1.1.2.2.2.2.2...1.2.2.1.1.2.1.2
...1.1.1.1.2.2.2.2...1.1.1.2.2.2.2.2...1.1.1.1.1.1.2.2...1.2.2.2.2.2.2.2
------
...1.1.1.1.1.1.1.2...1.1.1.1.1.1.1.2...1.2.2.2.2.2.2.2...1.1.1.1.1.1.1.1
...1.2.2.1.2.2.1.2...2.1.1.1.1.2.1.2...1.2.2.1.1.2.1.2...1.2.2.1.2.1.2.1
...1.1.2.2.2.2.2.2...2.2.2.2.2.2.2.2...1.1.1.1.1.1.1.2...2.2.2.2.2.2.2.2
------
...1.1.1.1.1.1.1.2...1.1.1.1.1.1.2.2...1.1.1.1.1.1.1.1...1.1.2.2.2.2.2.2
...1.1.2.1.1.2.1.2...1.2.2.1.1.1.2.2...1.2.2.2.2.2.1.1...1.2.2.1.2.2.2.2
...2.2.2.2.2.2.2.2...1.1.2.2.2.2.2.2...2.2.2.2.2.2.2.1...1.1.1.1.1.1.1.1
CROSSREFS
Sequence in context: A221163 A000436 A015507 * A277656 A264198 A193837
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 31 2009
STATUS
approved

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)