a(n) = A000217(n) - A048702(n).

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =-1a(5) =0a(6) =4a(7) =7a(8) =-7a(9) =-6a(10) =0a(11) =3a(12) =13a(13) =18a(14) =28a(15) =35a(16) =-35a(17) =-34a(18) =-24a(19) =-21a(20) =-5a(21) =0a(22) =14a(23) =21a(24) =43a(25) =52a(26) =70a(27) =81a(28) =105a(29) =118