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A003223 Superpositions of cycles of order n of the groups S_2 and D_n.
(Formerly M1226)
3
1, 2, 4, 10, 28, 130 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

REFERENCES

F. Harary and E. M. Palmer, Graphical Enumeration, Academic Press, NY, 1973, p. 171.

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..8.

V. Meally, Letter to N. J. A. Sloane, Feb 1975

E. M. Palmer and R. W. Robinson, Enumeration under two representations of the wreath product, Acta Math., 131 (1973), 123-143.

CROSSREFS

Cf. A003224, A003225.

Sequence in context: A123429 A207018 A006841 * A061417 A153921 A189582

Adjacent sequences:  A003220 A003221 A003222 * A003224 A003225 A003226

KEYWORD

nonn,easy,more

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified June 25 00:41 EDT 2017. Contains 288708 sequences.