Number of overpartitions of n minus the number of partitions of n.

Terms

a(0) =0a(1) =1a(2) =2a(3) =5a(4) =9a(5) =17a(6) =29a(7) =49a(8) =78a(9) =124a(10) =190a(11) =288a(12) =427a(13) =627a(14) =905a(15) =1296a(16) =1831a(17) =2567a(18) =3563a(19) =4910a(20) =6709a(21) =9112a(22) =12286a(23) =16473a(24) =21953a(25) =29108a(26) =38388a(27) =50398a(28) =65850a(29) =85683