

A221843


Number of partitions of n^2 into squares providing prime dissections of an n X n square into integersided squares.


2



1, 1, 2, 5, 10, 27, 56, 141, 309, 742, 1558, 3808
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OFFSET

1,3


COMMENTS

In a prime dissection the GCD of the square sides is one.


LINKS



EXAMPLE

For n = 4 the a(4) = 5 sets of squares which provide prime dissections of a 4 X 4 square are {1(3 X 3), 7(1 X 1)}, {3(2 X 2), 4(1 X 1)}, {2(2 X 2), 8(1 X 1)}, {1(2 X 2), 12(1 X 1)} and {16(1 X 1)}.


CROSSREFS



KEYWORD

nonn,more


AUTHOR



EXTENSIONS



STATUS

approved



