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A002935 Number of series-reduced star graphs with n edges.
(Formerly M1364 N0528)
1
1, 1, 2, 5, 9, 22, 62, 177, 560, 1939 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,3

REFERENCES

B. R. Heap, The enumeration of homeomorphically irreducible star graphs, J. Math. Phys., 7 (1966), 1582-1587.

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

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=3..12.

CROSSREFS

Cf. A046752.

Sequence in context: A052962 A173565 A268651 * A128266 A088356 A246350

Adjacent sequences:  A002932 A002933 A002934 * A002936 A002937 A002938

KEYWORD

nonn,nice,more

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified February 15 22:28 EST 2019. Contains 320138 sequences. (Running on oeis4.)