A192795 - OEIS

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A192795

Number of equivalence classes of permutations under the combined operations of rotating, adding, multiplying, and reversing.

3

1, 1, 1, 1, 2, 1, 13, 7, 39, 9, 16687, 15, 1537182, 2597, 88782, 796291

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OFFSET

1,5

LINKS

Table of n, a(n) for n=1..16.

M. J. Grannell, T. S. Griggs, M. Knor, J. Širán, Triangulations of orientable surfaces by complete tripartite graphs, Discrete Math. 306 (2006), 600-606.

CROSSREFS

Sequence in context: A167584 A398480 A112226 * A113097 A032001 A358205

Adjacent sequences: A192792 A192793 A192794 * A192796 A192797 A192798

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jul 11 2011

STATUS

approved