Let f(x) = 1 + x^2 + x^4 + x^5 + x^6 + x^10 + x^11; sequence has g.f. g(x) = 1/(x^11*f(1/x)).

Terms

a(0) =1a(1) =-1a(2) =1a(3) =-1a(4) =1a(5) =-2a(6) =2a(7) =-3a(8) =4a(9) =-6a(10) =9a(11) =-12a(12) =17a(13) =-22a(14) =30a(15) =-40a(16) =54a(17) =-74a(18) =100a(19) =-138a(20) =188a(21) =-258a(22) =352a(23) =-479a(24) =653a(25) =-887a(26) =1209a(27) =-1645a(28) =2242a(29) =-3056