a(n) = Sum_{p | A055204(n)} 2^(pi(p) - 1).

Terms

a(0) =0a(1) =1a(2) =3a(3) =3a(4) =7a(5) =4a(6) =12a(7) =13a(8) =13a(9) =8a(10) =24a(11) =26a(12) =58a(13) =51a(14) =53a(15) =53a(16) =117a(17) =116a(18) =244a(19) =240a(20) =250a(21) =235a(22) =491a(23) =488a(24) =488a(25) =457a(26) =459a(27) =451a(28) =963a(29) =964