Sum of digits of n-th odd number.

Terms

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