A007269 General partition graphs on n vertices. (Formerly M1451)

1, 1, 2, 5, 13, 41, 145, 604, 2938, 16947, 117208, 988832

Offset

1,3

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=1..12.

D. W. DeTemple et al., Recent examples in the theory of partition graphs, Discrete Math., 113 (1993), 255-258.

Crossrefs

Sequence in context: A247981 A149868 A343175 * A179264 A096724 A088553

Adjacent sequences: A007266 A007267 A007268 * A007270 A007271 A007272

Keyword

nonn,more,hard

Author

Simon Plouffe

Extensions

a(11)-a(12) from Sean A. Irvine, Dec 03 2017

Status

approved