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A167245 Number of ways to partition a 2*n X 3 grid into 6 connected equal-area regions 0
1, 11, 170, 997, 7670, 62609, 296063, 1685893, 9684421, 41633825 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
EXAMPLE
Some solutions for n=4
...1.1.2...1.1.1...1.1.2...1.1.2...1.1.1...1.2.2...1.2.2...1.2.2...1.1.1
...1.2.2...2.1.3...3.1.2...1.2.2...2.3.1...1.2.2...1.1.2...1.2.2...2.1.3
...1.3.2...2.3.3...3.1.2...1.2.3...2.3.3...1.3.3...1.3.2...1.3.3...2.3.3
...3.3.4...2.2.3...3.4.2...4.3.3...2.3.4...1.3.3...3.3.4...1.3.3...2.4.3
...3.4.4...4.4.4...3.4.4...4.4.3...2.4.4...4.4.4...5.3.4...4.4.4...2.4.4
...5.4.6...5.4.6...5.5.4...5.4.6...5.4.6...4.5.5...5.6.4...4.5.5...5.4.6
...5.5.6...5.5.6...6.5.5...5.6.6...5.5.6...6.5.5...5.6.4...6.6.5...5.5.6
...5.6.6...5.6.6...6.6.6...5.5.6...5.6.6...6.6.6...5.6.6...6.6.5...5.6.6
CROSSREFS
Sequence in context: A157944 A362501 A233290 * A331929 A205087 A064182
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 31 2009
STATUS
approved

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Last modified March 1 20:05 EST 2024. Contains 370443 sequences. (Running on oeis4.)