A028802 Nonsquares mod 89.

3, 6, 7, 12, 13, 14, 15, 19, 23, 24, 26, 27, 28, 29, 30, 31, 33, 35, 37, 38, 41, 43, 46, 48, 51, 52, 54, 56, 58, 59, 60, 61, 62, 63, 65, 66, 70, 74, 75, 76, 77, 82, 83, 86

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full
• easy

Crossrefs

Cf. A010450 (complement), A096013 (row 89).

Programs

Mathematica

Select[Range[88], JacobiSymbol[#, 89] == -1 &] (* Harvey P. Dale, Mar 01 2015 *)

Scala

(0 to 88).diff((1 to 89).map(n => n * n % 89)) // Alonso del Arte, Jan 24 2020