Nonsquares mod 57.

Terms

a(0) =2a(1) =3a(2) =5a(3) =8a(4) =10a(5) =11a(6) =12a(7) =13a(8) =14a(9) =15a(10) =17a(11) =18a(12) =20a(13) =21a(14) =22a(15) =23a(16) =26a(17) =27a(18) =29a(19) =31a(20) =32a(21) =33a(22) =34a(23) =35a(24) =37a(25) =38a(26) =40a(27) =41a(28) =44a(29) =46