Enumeration of (k, 2)-noncrossing partitions.

Toufik Mansour Simone Severini Enumeration of (k, 2)-noncrossing partitions. 4570-4577 2008 308 Discrete Mathematics 20 http://dx.doi.org/10.1016/j.disc.2007.08.068 db/journals/dm/dm308.html#MansourS08