1,3

(Other) sage: [quadratic_residues(28)]# [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 24 2009]

Sequence in context: A162215 A134344 A119315 this_sequence A003624 A100657 A140104

Adjacent sequences: A010387 A010388 A010389 this_sequence A010391 A010392 A010393

nonn,fini,full

N. J. A. Sloane (njas(AT)research.att.com).