login
A010445
Squares mod 84.
1
0, 1, 4, 9, 16, 21, 25, 28, 36, 37, 49, 57, 60, 64, 72, 81
OFFSET
1,3
MATHEMATICA
Union[Mod[Range[84]^2, 84]] (* Harvey P. Dale, Jan 09 2011 *)
PROG
(Sage) [quadratic_residues(84)] # Zerinvary Lajos, May 28 2009
(Scala) (1 to 84).map(n => (n * n) % 84).toSet.toSeq.sorted // Alonso del Arte, Dec 21 2019
CROSSREFS
Cf. A028797.
Sequence in context: A010461 A010421 A286069 * A155570 A313341 A313342
KEYWORD
nonn,fini,full,easy
STATUS
approved