Number of ordered set partitions of [2n] into n blocks such that equal-sized blocks are ordered with increasing least elements.
A285926
Number of ordered set partitions of [2n] into n blocks such that equal-sized blocks are ordered with increasing least elements.
Terms
- a(0) =1a(1) =1a(2) =11a(3) =420a(4) =17129a(5) =1049895a(6) =97141022a(7) =10742461730
External references
- oeis: A285926