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Number of tilings of a 9 X n rectangle using integer-sided rectangular tiles of equal area.
2

%I #9 Sep 05 2021 19:13:26

%S 1,3,62,23,6698,134,819260,2877,108621208,37201,14479700369,468915,

%T 1937642567197,7263798,259423798200631,97188666,34741718606996667,

%U 1352782707,4652799885800847654,19220635744,623139536802731306776,265095839585,83456125991723439283189

%N Number of tilings of a 9 X n rectangle using integer-sided rectangular tiles of equal area.

%H Alois P. Heinz, <a href="/A220775/b220775.txt">Table of n, a(n) for n = 0..50</a>

%e a(1) = 3:

%e ._. ._. ._.

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%Y Column k=9 of A220777.

%K nonn

%O 0,2

%A _Alois P. Heinz_, Dec 19 2012