Sum of the asymmetry degrees of all compositions of n with parts in {1,3}.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =2a(5) =2a(6) =4a(7) =6a(8) =14a(9) =18a(10) =36a(11) =50a(12) =94a(13) =130a(14) =236a(15) =330a(16) =580a(17) =816a(18) =1404a(19) =1984a(20) =3354a(21) =4758a(22) =7932a(23) =11286a(24) =18600a(25) =26532a(26) =43308a(27) =61908a(28) =100232a(29) =143540