Number of characters in the French spelling of n, including spaces and hyphens.

Terms

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