L.g.f.: Sum_{n>=1} (x - x^(2*n-1))^(2*n-1) / (2*n-1).

Terms

a(0) =0a(1) =1a(2) =-4a(3) =8a(4) =-11a(5) =1a(6) =14a(7) =1a(8) =-50a(9) =58a(10) =1a(11) =1a(12) =-54a(13) =1a(14) =-28a(15) =311a(16) =-340a(17) =1a(18) =75a(19) =1a(20) =-81a(21) =345a(22) =-44a(23) =1a(24) =-1427a(25) =1531a(26) =-52a(27) =496a(28) =-1253a(29) =1