Number of graphical basis partitions of 2n.

Terms

a(0) =1a(1) =1a(2) =3a(3) =4a(4) =6a(5) =11a(6) =16a(7) =23a(8) =36a(9) =52a(10) =71a(11) =103a(12) =141a(13) =197a(14) =272a(15) =366a(16) =482a(17) =657a(18) =863a(19) =1140a(20) =1489a(21) =1951a(22) =2511a(23) =3241a(24) =4155a(25) =5317a(26) =6782a(27) =8574a(28) =10786a(29) =13645