G.f.: Im((i*x; x)_inf), where (a; q)_inf is the q-Pochhammer symbol, i = sqrt(-1).

Terms

a(0) =0a(1) =-1a(2) =-1a(3) =-1a(4) =-1a(5) =-1a(6) =0a(7) =0a(8) =1a(9) =2a(10) =3a(11) =4a(12) =6a(13) =7a(14) =9a(15) =10a(16) =12a(17) =13a(18) =15a(19) =15a(20) =16a(21) =16a(22) =16a(23) =14a(24) =13a(25) =9a(26) =6a(27) =0a(28) =-5a(29) =-14