Number of parts in all partitions of n into even number of distinct parts.

Terms

a(0) =0a(1) =0a(2) =0a(3) =2a(4) =2a(5) =4a(6) =4a(7) =6a(8) =6a(9) =8a(10) =12a(11) =14a(12) =18a(13) =24a(14) =32a(15) =38a(16) =50a(17) =60a(18) =76a(19) =90a(20) =110a(21) =134a(22) =162a(23) =190a(24) =228a(25) =270a(26) =322a(27) =380a(28) =446a(29) =524