Sum of the asymmetry degrees of all compositions of n with parts in {1,2,4,6,8,10,...}.

Terms

a(0) =0a(1) =0a(2) =0a(3) =2a(4) =2a(5) =8a(6) =16a(7) =34a(8) =72a(9) =146a(10) =294a(11) =590a(12) =1156a(13) =2278a(14) =4422a(15) =8572a(16) =16510a(17) =31682a(18) =60558a(19) =115398a(20) =219190a(21) =415348a(22) =784996a(23) =1480600a(24) =2786818a(25) =5236078a(26) =9821222a(27) =18393268a(28) =34397388a(29) =64241880