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

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =3a(5) =4a(6) =10a(7) =15a(8) =33a(9) =55a(10) =111a(11) =195a(12) =380a(13) =684a(14) =1306a(15) =2389a(16) =4507a(17) =8313a(18) =15591a(19) =28881a(20) =53991a(21) =100257a(22) =187086a(23) =347860a(24) =648512a(25) =1206656a(26) =2248399a(27) =4185087a(28) =7796011a(29) =14514195