Geometric mean of digits of n (rounded up).

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =0a(11) =1a(12) =2a(13) =2a(14) =2a(15) =3a(16) =3a(17) =3a(18) =3a(19) =3a(20) =0a(21) =2a(22) =2a(23) =3a(24) =3a(25) =4a(26) =4a(27) =4a(28) =4a(29) =5