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A192894 Number of symmetric 13-ary factorizations of the n-cycle (12...n). 2
1, 1, 7, 13, 112, 247, 2310, 5525, 53998, 135408 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

The six sequences displayed in Table 1 of the Bousquet-Lamathe reference are A047749, A143546, A143547, A143554, A192893, A192894. From this one should be able to guess a g.f.

LINKS

Table of n, a(n) for n=1..10.

Michel Bousquet and C├ędric Lamathe, On symmetric structures of order two, Discrete Math. Theor. Comput. Sci. 10 (2008), 153-176. See Table 1.

CROSSREFS

Sequence in context: A046519 A283920 A128351 * A241280 A219703 A198947

Adjacent sequences:  A192891 A192892 A192893 * A192895 A192896 A192897

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 12 2011

STATUS

approved

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Last modified May 15 08:59 EDT 2021. Contains 343909 sequences. (Running on oeis4.)