A241584 Number of orbits of Sym(n)^2 under action of Iso_1(n).

1, 4, 11, 43, 155, 761, 4043, 27190

Offset: 1

Author

N. J. A. Sloane, May 12 2014

Keywords

• nonn
• more

Links

• Mathieu Bogaerts and Peter Dukes, Semidefinite programming for permutation codes, Discrete Math. 326 (2014), 34--43. MR3188985.

Crossrefs

Cf. A241585, A110143.

Formula

Proposition 3.2 of Bogaerts et al. gives an explicit formula.