Nonsquares mod 43.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =8a(5) =12a(6) =18a(7) =19a(8) =20a(9) =22a(10) =26a(11) =27a(12) =28a(13) =29a(14) =30a(15) =32a(16) =33a(17) =34a(18) =37a(19) =39a(20) =42