A280766 - OEIS

%I #14 Jun 30 2018 15:32:53

%S 1,2,4,11,31,114,454,2078,10168,53045,288037,1617483,9311503,54723397,

%T 327065591,1982926671,12169747393,75486178107,472601737413,

%U 2983335066047,18971431861215,121440495203940,782013670584330,5063068510021079,32942387619476871,215306810250387250

%N Number of unlabeled, unrooted distance-hereditary graphs on n vertices.

%C Similar to A277862 except need not be connected.

%H Jessica Shi, <a href="https://pdfs.semanticscholar.org/c264/67cd4a5f0adee094d7c19fd8a08a78b46793.pdf">Enumeration of unlabeled graph classes: A study of tree decompositions and related approaches</a>, 2015.

%F Euler transform of A277862.

%Y Cf. A277862.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Jan 17 2017

%E a(9)-a(26) from Euler transform of A277862 by _Falk Hüffner_, Jun 27 2018