1,1

Some solutions for n=3

...3.3.3.3...3.1.2.2...2.1.3.3...2.2.2.2...3.2.2.2...3.3.3.2...2.2.2.2

...3.3.3.3...3.3.2.2...2.3.3.3...1.2.2.3...3.2.1.2...3.1.3.3...2.2.3.1

...1.2.2.3...3.3.3.2...3.3.3.3...1.1.1.1...2.2.1.1...1.1.3.3...2.2.3.1

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...3.3.2.2...1.1.2.2...3.2.2.1...1.1.3.3...2.3.3.3...1.1.3.3...1.1.2.2

...3.3.1.2...1.2.2.2...3.1.1.1...1.3.3.3...2.3.3.1...1.3.3.3...1.2.2.2

...3.3.3.3...2.2.3.2...3.1.1.1...1.1.2.3...2.2.3.3...3.3.2.2...1.1.2.3

Sequence in context: A011906 A133401 A061079 this_sequence A003298 A049869 A041615

Adjacent sequences: A166764 A166765 A166766 this_sequence A166768 A166769 A166770

nonn

Ron Hardin (rhhardin(AT)att.net) Oct 21 2009