A028776 Nonsquares mod 63.

2, 3, 5, 6, 8, 10, 11, 12, 13, 14, 15, 17, 19, 20, 21, 23, 24, 26, 27, 29, 30, 31, 32, 33, 34, 35, 38, 39, 40, 41, 42, 44, 45, 47, 48, 50, 51, 52, 53, 54, 55, 56, 57, 59, 60, 61, 62

Offset

1,1

Links

Table of n, a(n) for n=1..47.

Mathematica

Complement[Range[0, 62], PowerMod[Range[63], 2, 63]] (* Alonso del Arte, Dec 21 2019 *)

Prog

(Scala) (0 to 62).diff((1 to 63).map(n => (n * n) % 63)) // Alonso del Arte, Dec 21 2019

Crossrefs

Cf. A010424.

Sequence in context: A028374 A050578 A283513 * A028734 A028755 A187897

Adjacent sequences: A028773 A028774 A028775 * A028777 A028778 A028779

Keyword

nonn,fini,full,easy

Author

N. J. A. Sloane

Status

approved