Repeated set splitting, unlabeled elements. Repeated integer partitioning into two parts.

A137732

Repeated set splitting, unlabeled elements. Repeated integer partitioning into two parts.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =16a(5) =55a(6) =224a(7) =935a(8) =4400a(9) =21262a(10) =111624a(11) =596805a(12) =3457354a(13) =20147882a(14) =125455512a(15) =792576243a(16) =5277532388a(17) =35519373064a(18) =252120178596

External references