A003224 The number of superpositions of cycles of order n of the groups E_3 and D_n. (Formerly M3934)

1, 5, 24, 391, 9549, 401547, 22597671, 1646431048, 149640359575, 16597459048676, 2206178465445432, 346212403086248325, 63333787189956042080, 13359470726804093346852, 3218846593376516669825536, 878566295178157438213870011

Offset

3,2

Comments

Palmer and Robinson, Table 2, has incorrect a(8) = 401691. - Sean A. Irvine, Oct 25 2017

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..18.

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

Crossrefs

Cf. A000940, A006841, A003225.

Sequence in context: A051812 A267279 A257214 * A270581 A156310 A142725

Adjacent sequences: A003221 A003222 A003223 * A003225 A003226 A003227

Keyword

nonn,easy

Author

N. J. A. Sloane

Extensions

a(8) corrected and more terms from Sean A. Irvine, Oct 25 2017

Status

approved