Sum of the asymmetry degrees of all compositions of n without 2's.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =2a(5) =4a(6) =8a(7) =16a(8) =34a(9) =68a(10) =134a(11) =260a(12) =502a(13) =960a(14) =1824a(15) =3444a(16) =6472a(17) =12108a(18) =22566a(19) =41912a(20) =77608a(21) =143312a(22) =263990a(23) =485196a(24) =889938a(25) =1629256a(26) =2977642a(27) =5433344a(28) =9899776a(29) =18013288