A028788 Nonsquares mod 75.

2, 3, 5, 7, 8, 10, 11, 12, 13, 14, 15, 17, 18, 20, 22, 23, 26, 27, 28, 29, 30, 32, 33, 35, 37, 38, 40, 41, 42, 43, 44, 45, 47, 48, 50, 52, 53, 55, 56, 57, 58, 59, 60, 62, 63, 65, 67, 68, 70, 71, 72, 73, 74

Offset

1,1

Links

Table of n, a(n) for n=1..53.

Mathematica

Complement[Range[0, 74], PowerMod[Range[75], 2, 75]] (* Alonso del Arte, Dec 25 2019 *)

Prog

(Scala) (0 to 74).diff((1 to 75).map(n => (n * n) % 75))

Crossrefs

Cf. A010436.

Sequence in context: A152604 A302293 A266347 * A197128 A034707 A288378

Adjacent sequences: A028785 A028786 A028787 * A028789 A028790 A028791

Keyword

nonn,fini,full,easy

Author

N. J. A. Sloane

Status

approved