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%I #6 Jun 01 2022 11:34:31
%S 1,1,7,259,9525,270827,6633399,158753814,3825111851,96608374284,
%T 2446223788303
%N Number of tilings of a 7 X n rectangle with n heptominoes of any shape.
%H R. S. Harris, <a href="http://www.bumblebeagle.org/polyominoes/tilingcounting/counting_9x9_tilings.pdf">Counting Nonomino Tilings and Other Things of that Ilk</a>, G4G9 Gift Exchange book, 2010.
%H R. S. Harris, <a href="http://www.bumblebeagle.org/polyominoes/tilingcounting">Counting Polyomino Tilings</a>
%Y Cf. A134438, A174248, A174249, A174250, A174252, A174253.
%K nonn,more
%O 0,3
%A Bob Harris (me13013(AT)gmail.com), Mar 13 2010
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