Number of parts in all twice partitions of n where the second partition is strict.

Terms

a(0) =0a(1) =1a(2) =3a(3) =8a(4) =17a(5) =34a(6) =74a(7) =134a(8) =254a(9) =470a(10) =842a(11) =1463a(12) =2620a(13) =4416a(14) =7545a(15) =12749a(16) =21244a(17) =34913a(18) =57868a(19) =93583a(20) =151963a(21) =244602a(22) =391206a(23) =620888a(24) =987344a(25) =1550754a(26) =2435087a(27) =3804354a(28) =5920225a(29) =9162852