Number of 1's in binary expansion of parts in all partitions of n.

Terms

a(0) =0a(1) =1a(2) =3a(3) =7a(4) =13a(5) =23a(6) =41a(7) =65a(8) =102a(9) =156a(10) =234a(11) =340a(12) =495a(13) =697a(14) =982a(15) =1359a(16) =1864a(17) =2523a(18) =3408a(19) =4536a(20) =6022a(21) =7918a(22) =10365a(23) =13457a(24) =17423a(25) =22380a(26) =28666a(27) =36498a(28) =46318a(29) =58466