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%I #14 Oct 11 2022 06:59:21
%S 0,0,1,0,2,2,6,5,21,18,70,61,239,206,828,711,2903,2485,10314,8791,
%T 37031,31451,134147,113566,489672,413419,1799084,1515282,6647009,
%U 5586834,24677902,20703840,92009606,77067674,344336294,288001040,1292929699,1079999410,4869184237,4062534430
%N Number of n-celled diagonally symmetric polyominoes without holes.
%H Tomás Oliveira e Silva, <a href="http://sweet.ua.pt/tos/animals.html">Enumeration of polyominoes</a>
%Y Cf. A000104, A006748 (with holes allowed).
%K nonn
%O 1,5
%A _N. J. A. Sloane_, Sep 03 2000
%E a(29)-a(40) from _John Mason_, Oct 11 2022
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