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%I #10 Jul 31 2019 11:49:15
%S 0,2,14,106,801,6341,51632,431503,3678308,31873041,279902507,
%T 2485759768,22286120125,201441772806,1833727566167,16796110395426,
%U 154687931712684,1431579231342976,13306513476718812,124169476411774978,1162801650307216975,10924388061524347004
%N Related to enumeration of free catapolyoctagons (see Cyvin reference for precise definition).
%D S. J. Cyvin, B. N. Cyvin, and J. Brunvoll. Enumeration of tree-like octagonal systems: catapolyoctagons, ACH Models in Chem. 134 (1997), 55-70, Table IV ^qC_r.
%F a(n) = (A036758(n)-A036759(n))/2 [Cyvin eq. (48)] . - _R. J. Mathar_, Jul 31 2019
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Aug 13 2006
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