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

Terms

a(0) =1a(1) =2a(2) =6a(3) =14a(4) =34a(5) =74a(6) =166a(7) =350a(8) =746a(9) =1546a(10) =3206a(11) =6550a(12) =13386a(13) =27114a(14) =54894a(15) =110630a(16) =222794a(17) =447538a(18) =898574a(19) =1801590a(20) =3610930a(21) =7231858a(22) =14480654a(23) =28983246a(24) =58003250a(25) =116054034a(26) =232186518a(27) =464475166a(28) =929116402a(29) =1858449178