Total number of 1's in the binary expansion of parts in all partitions of n into distinct parts.

Terms

a(0) =0a(1) =1a(2) =1a(3) =4a(4) =4a(5) =7a(6) =11a(7) =15a(8) =20a(9) =28a(10) =39a(11) =48a(12) =64a(13) =80a(14) =104a(15) =134a(16) =167a(17) =203a(18) =257a(19) =311a(20) =381a(21) =470a(22) =566a(23) =680a(24) =820a(25) =981a(26) =1168a(27) =1394a(28) =1650a(29) =1946