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

Terms

a(0) =1a(1) =2a(2) =8a(3) =22a(4) =68a(5) =170a(6) =484a(7) =1166a(8) =3048a(9) =7274a(10) =18000a(11) =41806a(12) =100684a(13) =229258a(14) =535692a(15) =1206230a(16) =2758944a(17) =6123650a(18) =13798088a(19) =30284894a(20) =67272756a(21) =146426002a(22) =321513284a(23) =693944814a(24) =1510245960a(25) =3236648578a(26) =6985572672a(27) =14885926182a(28) =31904642348a(29) =67618415690