Number of vowels in n (in German).

Terms

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