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%I #22 Mar 21 2024 21:01:00
%S 0,1,1,4,6,28,83,289,1030,3860,14154,53222,202001,771255,2945803,
%T 11304541,43564276,168413249,652292925,2531493604,9845752518,
%U 38372748112
%N Number of n-celled polyominoes which are of rectangular but not square type.
%H T. R. Parkin, L. J. Lander, and D. R. Parkin, <a href="/A000104/a000104.pdf">Polyomino Enumeration Results</a>, presented at SIAM Fall Meeting, 1967, and accompanying letter from T. J. Lander (annotated scanned copy). See page 21. The 15th entry is not included because their value for A000105(15) was incorrect.
%F a(n)+A259088(n) = A000105(n).
%Y Cf. A259088, A000105.
%K nonn,more
%O 1,4
%A _N. J. A. Sloane_, Jun 18 2015
%E a(15)-a(17) computed from A000105-A259088 by _Jean-François Alcover_, Dec 30 2019
%E a(18)-a(22) from _John Mason_, Nov 19 2021
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