Number of set partitions of [2n] such that the maximal absolute difference between the least elements of consecutive blocks equals n.
A322884
Number of set partitions of [2n] such that the maximal absolute difference between the least elements of consecutive blocks equals n.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =39a(4) =493a(5) =9320a(6) =242366a(7) =8193031a(8) =346270455a(9) =17780116911
External references
- oeis: A322884