Number of bipartite partitions.

Terms

a(0) =5a(1) =13a(2) =30a(3) =59a(4) =109a(5) =187a(6) =312a(7) =497a(8) =775a(9) =1176a(10) =1753a(11) =2561a(12) =3694a(13) =5245a(14) =7366a(15) =10223a(16) =14056a(17) =19137a(18) =25853a(19) =34637a(20) =46092a(21) =60910a(22) =80009a(23) =104462a(24) =135674a(25) =175274