G.f.: 1/((1-x)^2*(1-x^2)*(1-x^4)*(1-x^8)).

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =10a(5) =14a(6) =20a(7) =26a(8) =36a(9) =46a(10) =60a(11) =74a(12) =94a(13) =114a(14) =140a(15) =166a(16) =201a(17) =236a(18) =280a(19) =324a(20) =380a(21) =436a(22) =504a(23) =572a(24) =656a(25) =740a(26) =840a(27) =940a(28) =1060a(29) =1180