a(n) = A061419(n) - A002379(n).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =7a(7) =11a(8) =16a(9) =24a(10) =36a(11) =54a(12) =80a(13) =121a(14) =181a(15) =271a(16) =407a(17) =610a(18) =915a(19) =1372a(20) =2058a(21) =3088a(22) =4631a(23) =6947a(24) =10420a(25) =15630a(26) =23446a(27) =35169a(28) =52753a(29) =79129