%I #15 Mar 09 2019 00:22:22
%S 1,2,4,5,8,10,13,16,19,22,26,30,34,38
%N Maximal number of distinct polyominoes into which an n X n square can be divided.
%C Found as a solution for Ken Duisenberg's Puzzle of the Week, archived September 12, 2008.
%C The maximal cardinality of a set of distinct polyominoes with total area n^2 is an upper bound, and I conjecture that this bound is always attainable. - _Charlie Neder_, Mar 06 2019
%H Ken Duisenberg, <a href="http://ken.duisenberg.com/potw/archive/arch08/080912sol.html">Puzzle of the Week: September 12, 2008</a>
%H Charlie Neder, <a href="/A144876/a144876.png">Example dissections for n = 9, 10, 11, 12</a>
%K nonn,more
%O 1,2
%A Ken Duisenberg (Ken.Duisenberg(AT)hp.com), Sep 24 2008
%E a(9)-a(14) from _Charlie Neder_, Mar 06 2019