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Number of equivalence classes of permutations under the combined operations of rotating, adding, multiplying, and reversing.
3

%I #17 May 31 2018 12:04:15

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

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

%H M. J. Grannell, T. S. Griggs, M. Knor, J. Širán, <a href="https://doi.org/10.1016/j.disc.2005.10.025">Triangulations of orientable surfaces by complete tripartite graphs</a>, Discrete Math. 306 (2006), 600-606.

%K nonn,more

%O 1,5

%A _N. J. A. Sloane_, Jul 11 2011