Table of n, a(n) for n=2..11.
Simona Grusea and Anthony Labarre, The distribution of cycles in breakpoint graphs of signed permutations, arXiv:1104.3353v1
Sequence in context: A179879 A297516 A099343 * A243698 A217899 A006959
Adjacent sequences: A189506 A189507 A189508 * A189510 A189511 A189512
N. J. A. Sloane, Apr 23 2011
Added missing term for n=9, Anthony Labarre, Feb 14 2013