A035356 Number of asymmetric polygonal cacti with bridges (mixed Husimi trees).

1, 1, 0, 0, 0, 0, 1, 4, 13, 45, 143, 461, 1470, 4747, 15364, 50283, 165549, 549734, 1837539, 6184589, 20938983, 71297174, 244009225, 839101403, 2898145437, 10050549437, 34985611467, 122209803101, 428285696895, 1505491979826

Offset

0,8

Links

Table of n, a(n) for n=0..29.

Index entries for sequences related to cacti

Index entries for sequences related to trees

Formula

G.f.: A(x) = B(x) + C(x) - B(x)*D(x), where B, C, D respectively are g.f.s of A035353, A035354, A035355.

Crossrefs

Cf. A000083, A000237, A000314, A035082, A035349-A035357.

Sequence in context: A351028 A285188 A192255 * A320652 A203573 A214997

Adjacent sequences: A035353 A035354 A035355 * A035357 A035358 A035359

Keyword

nonn

Author

Christian G. Bower, Nov 15 1998

Status

approved