Sum of digits in n-th term of A006711.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =7a(5) =11a(6) =16a(7) =20a(8) =24a(9) =30a(10) =40a(11) =49a(12) =64a(13) =86a(14) =113a(15) =152a(16) =200a(17) =265a(18) =355a(19) =470a(20) =627a(21) =819a(22) =1072a(23) =1422a(24) =1883a(25) =2488a(26) =3274a(27) =4358a(28) =5818a(29) =7715