a(n) = number of conjugacy classes in PSL_3(prime(n)).

Terms

a(0) =6a(1) =12a(2) =30a(3) =22a(4) =132a(5) =64a(6) =306a(7) =130a(8) =552a(9) =870a(10) =334a(11) =472a(12) =1722a(13) =634a(14) =2256a(15) =2862a(16) =3540a(17) =1264a(18) =1522a(19) =5112a(20) =1804a(21) =2110a(22) =6972a(23) =8010a(24) =3172a(25) =10302a(26) =3574a(27) =11556a(28) =4000a(29) =12882