Orders of vertex-transitive graphs which are not Cayley graphs.

Terms

a(0) =10a(1) =12a(2) =15a(3) =16a(4) =18a(5) =20a(6) =24a(7) =26a(8) =28a(9) =30a(10) =32a(11) =34a(12) =35a(13) =36a(14) =40a(15) =42a(16) =44a(17) =45a(18) =48a(19) =50a(20) =52a(21) =54a(22) =56a(23) =57a(24) =58a(25) =60a(26) =63a(27) =64