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A167254 Number of ways to partition an n X 6 grid into 6 connected equal-area regions 1

%I

%S 1,13,170,2003,27950,451206,6633399,99697633,1418159011

%N Number of ways to partition an n X 6 grid into 6 connected equal-area regions

%e Some solutions for n=4

%e ...1.1.2.2.2.3...1.1.1.1.2.3...1.2.2.2.2.3...1.1.2.2.2.3...1.1.1.2.2.2

%e ...1.4.4.2.3.3...4.4.2.2.2.3...1.1.1.3.3.3...1.1.2.4.4.3...1.3.3.3.3.2

%e ...1.4.4.5.5.3...5.4.4.6.6.3...4.5.5.5.6.6...5.6.6.6.4.3...4.4.5.5.6.6

%e ...6.6.6.6.5.5...5.5.5.6.6.3...4.4.4.5.6.6...5.5.5.6.4.3...4.4.5.5.6.6

%e ------

%e ...1.1.1.2.3.3...1.2.3.3.3.3...1.1.2.2.2.2...1.2.3.4.4.5...1.1.1.1.2.2

%e ...1.2.2.2.3.3...1.2.2.2.4.4...3.1.4.5.5.5...1.2.3.4.5.5...3.3.3.3.2.4

%e ...4.4.5.5.5.5...1.5.5.6.4.4...3.1.4.4.6.5...1.2.3.4.6.5...5.6.6.6.2.4

%e ...4.4.6.6.6.6...1.5.5.6.6.6...3.3.4.6.6.6...1.2.3.6.6.6...5.5.5.6.4.4

%e ------

%e ...1.1.2.2.2.3...1.1.2.3.3.4...1.2.2.3.3.3...1.1.2.3.3.3...1.1.2.2.2.3

%e ...1.4.2.5.5.3...1.2.2.2.3.4...1.2.2.3.4.5...1.4.2.5.5.3...1.1.2.3.3.3

%e ...1.4.5.5.6.3...1.5.5.6.3.4...1.6.4.4.4.5...1.4.2.5.6.6...4.4.4.5.5.5

%e ...4.4.6.6.6.3...5.5.6.6.6.4...1.6.6.6.5.5...4.4.2.5.6.6...4.6.6.6.6.5

%K nonn

%O 1,2

%A _R. H. Hardin_ Oct 31 2009

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Last modified October 21 01:15 EDT 2019. Contains 328291 sequences. (Running on oeis4.)