G.f.: Sum_{k>0} x^prime(k)/(1-x)^k.

Terms

a(0) =0a(1) =0a(2) =1a(3) =2a(4) =3a(5) =5a(6) =8a(7) =13a(8) =21a(9) =33a(10) =50a(11) =74a(12) =108a(13) =157a(14) =229a(15) =336a(16) =495a(17) =730a(18) =1075a(19) =1579a(20) =2314a(21) =3387a(22) =4957a(23) =7259a(24) =10638a(25) =15597a(26) =22864a(27) =33484a(28) =48943a(29) =71333