a(n) = A106184(n) / A001316(n).

Terms

a(0) =1a(1) =1a(2) =5a(3) =7a(4) =59a(5) =95a(6) =377a(7) =655a(8) =10163a(9) =18459a(10) =71099a(11) =132641a(12) =1021455a(13) =1937515a(14) =7477505a(15) =14335423a(16) =443971523a(17) =857241875a(18) =3328921191a(19) =6459762413a(20) =50311588373a(21) =97986366561a(22) =382518036575a(23) =747066030569