Sum of the even parts in all partitions of n into distinct parts.

Terms

a(0) =0a(1) =0a(2) =2a(3) =2a(4) =4a(5) =6a(6) =14a(7) =18a(8) =22a(9) =34a(10) =50a(11) =66a(12) =88a(13) =118a(14) =154a(15) =202a(16) =248a(17) =320a(18) =412a(19) =512a(20) =636a(21) =794a(22) =972a(23) =1194a(24) =1454a(25) =1766a(26) =2134a(27) =2576a(28) =3092a(29) =3696