Number of strict partitions of 2n that include a partition of n.

Terms

a(0) =1a(1) =0a(2) =0a(3) =1a(4) =1a(5) =3a(6) =4a(7) =7a(8) =9a(9) =16a(10) =21a(11) =32a(12) =43a(13) =63a(14) =84a(15) =122a(16) =158a(17) =220a(18) =293a(19) =393a(20) =511a(21) =685a(22) =881a(23) =1156a(24) =1485a(25) =1925a(26) =2445a(27) =3147a(28) =3952a(29) =5019