a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 10.

Terms

a(0) =1a(1) =511a(2) =9841a(3) =130816a(4) =488281a(5) =5028751a(6) =6725601a(7) =33488896a(8) =64566801a(9) =249511591a(10) =235794769a(11) =1287360256a(12) =883708281a(13) =3436782111a(14) =4805173321a(15) =8573157376a(16) =7411742281a(17) =32993635311a(18) =17927094321a(19) =63874967296a(20) =66186639441a(21) =120491126959a(22) =81870575521a(23) =329564225536