A006292 Pseudo-bricks with n nodes. (Formerly M3105)

1, 3, 24, 159, 2044, 36181

Offset

4,2

References

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

Table of n, a(n) for n=4..9.

T. R. S. Walsh, Counting unlabeled three-connected and homeomorphically irreducible two-connected graphs, J. Combin. Theory Ser. B 32 (1982), no. 1, 12-32.

Index entries for sequences related to bricks

Crossrefs

Cf. A006291, A006293.

Sequence in context: A119581 A367119 A240916 * A067370 A322237 A289795

Adjacent sequences: A006289 A006290 A006291 * A006293 A006294 A006295

Keyword

nonn,more

Author

N. J. A. Sloane

Status

approved