Floor (e^(n / log(n))).

Terms

a(0) =17a(1) =15a(2) =17a(3) =22a(4) =28a(5) =36a(6) =46a(7) =60a(8) =76a(9) =98a(10) =125a(11) =158a(12) =201a(13) =254a(14) =320a(15) =403a(16) =506a(17) =634a(18) =793a(19) =989a(20) =1233a(21) =1533a(22) =1904a(23) =2360a(24) =2922a(25) =3612a(26) =4459a(27) =5498a(28) =6771a(29) =8328