G.f.: Product((1+x^i)/(1-x^i),i=1..n-1)/(1-x^n), with n = 8.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =14a(5) =24a(6) =40a(7) =64a(8) =99a(9) =150a(10) =222a(11) =322a(12) =460a(13) =646a(14) =894a(15) =1222a(16) =1649a(17) =2200a(18) =2906a(19) =3800a(20) =4924a(21) =6328a(22) =8066a(23) =10204a(24) =12819a(25) =15996a(26) =19834a(27) =24448a(28) =29964a(29) =36526