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

Terms

a(0) =2a(1) =2a(2) =7a(3) =2a(4) =15a(5) =10a(6) =15a(7) =8a(8) =34a(9) =12a(10) =45a(11) =22a(12) =31a(13) =32a(14) =73a(15) =28a(16) =90a(17) =40a(18) =57a(19) =50a(20) =135a(21) =46a(22) =118a(23) =74a(24) =117a(25) =70a(26) =198a(27) =58a(28) =222a(29) =120