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A007743 Number of n-celled mirror-symmetric solid polyominoes (or polycubes). 3


%S 1,1,2,6,17,58,191,700,2515,9623,36552,143761,564443,2259905,9057278,

%T 36705846

%N Number of n-celled mirror-symmetric solid polyominoes (or polycubes).

%C A000162 but with both copies of each mirror-image deleted.

%H G. Thimm, <a href="/A007741/a007741.pdf">Emails to N. J. A. Sloane, Sep. 1994</a>

%Y A038119 = (A007743+A000162)/2, A007743 = 2*A038119 - A000162, A000162 = 2*A038119 - A007743.

%K nonn,nice

%O 1,3

%A Arlin Anderson (starship1(AT)gmail.com)

%E More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 05 2007

%E Changed "symmetric" to "mirror-symmetric" in the title by _George Sicherman_, Feb 21 2018

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Last modified June 22 09:57 EDT 2021. Contains 345375 sequences. (Running on oeis4.)