Number of solutions to x*frac[p(x)/x]<=Log[n] or A004648(n)<=Log[n].

Terms

a(0) =1a(1) =5a(2) =6a(3) =12a(4) =13a(5) =14a(6) =15a(7) =31a(8) =32a(9) =34a(10) =69a(11) =73a(12) =74a(13) =75a(14) =76a(15) =77a(16) =181a(17) =445a(18) =1052a(19) =6455a(20) =6456a(21) =6457a(22) =6459a(23) =6460a(24) =6466a(25) =15928a(26) =16055a(27) =40073a(28) =40078a(29) =40080