Expansion of 1/(2 - Product_{k>=2} (1 + x^k)).

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =2a(5) =4a(6) =6a(7) =12a(8) =19a(9) =36a(10) =60a(11) =108a(12) =187a(13) =328a(14) =576a(15) =1005a(16) =1765a(17) =3084a(18) =5408a(19) =9461a(20) =16575a(21) =29017a(22) =50812a(23) =88977a(24) =155792a(25) =272813a(26) =477684a(27) =836466a(28) =1464654a(29) =2564685