Total number of even parts in all partitions of n.

Terms

a(0) =0a(1) =1a(2) =1a(3) =4a(4) =5a(5) =11a(6) =15a(7) =28a(8) =38a(9) =62a(10) =85a(11) =131a(12) =177a(13) =258a(14) =346a(15) =489a(16) =648a(17) =890a(18) =1168a(19) =1572a(20) =2042a(21) =2699a(22) =3475a(23) =4532a(24) =5783a(25) =7446a(26) =9430a(27) =12017a(28) =15106a(29) =19073