Sum of all the digits of n in every base from 2 to n-1.

Terms

a(0) =2a(1) =3a(2) =7a(3) =9a(4) =15a(5) =16a(6) =20a(7) =24a(8) =34a(9) =33a(10) =45a(11) =51a(12) =59a(13) =57a(14) =73a(15) =72a(16) =90a(17) =91a(18) =103a(19) =113a(20) =135a(21) =127a(22) =143a(23) =155a(24) =167a(25) =170a(26) =198a(27) =192a(28) =222a(29) =220