Number of bipartite partitions.

Terms

a(0) =4a(1) =10a(2) =23a(3) =45a(4) =83a(5) =142a(6) =237a(7) =377a(8) =588a(9) =892a(10) =1330a(11) =1943a(12) =2804a(13) =3982a(14) =5595a(15) =7768a(16) =10686a(17) =14555a(18) =19674a(19) =26371a(20) =35112a(21) =46424a(22) =61015a(23) =79705a(24) =103579a(25) =133883a(26) =172243a(27) =220551a(28) =281212a(29) =357043