Nonsquares mod 70.

Terms

a(0) =2a(1) =3a(2) =5a(3) =6a(4) =7a(5) =8a(6) =10a(7) =12a(8) =13a(9) =17a(10) =18a(11) =19a(12) =20a(13) =22a(14) =23a(15) =24a(16) =26a(17) =27a(18) =28a(19) =31a(20) =32a(21) =33a(22) =34a(23) =37a(24) =38a(25) =40a(26) =41a(27) =42a(28) =43a(29) =45